[Q] No SIM inserted - LG Optimus Black

Well, I have a OB with the "No SIM inserted" problem... (with SIM from the network lock or any other)
Any idea how to fix this?
Just tried pretty much any trick I could find online (just missing the heatgun thing - in due time...)
I appreciate more ideias.
thx!

If it doesn't recognise any SIM card it's hardware problem I think...

Btw i had the same problem....it got fixed in some store and the problem was something called main pcb
Sent from my LG-P970 using XDA App

I know it is most probably HW... but, doesn't hurt to ask for opinions/ideas.
Right now I only have a cool media player
I think I might try the heat gun trick and see how it goes.
[EDIT]: Could it be black listed by the operator? (I got it as is, used)

Hi, I've got this same prob but with another phone, non-android it was a samsung gt-s5560 [marvel or tocco] it was mine and I sell it, after a few days the girl keep telling me that she couldn't use the phone cause of a PIN, does your OB ask for a PIN? if so, just ask the old owner, when I remember the PIN call the girl and now she's happy using the device

I had the same problem with my ob. I take it to service and they replaced the phone with a new one. It's an hw problem with pcb.
Sent from my LG-P970 using XDA App

I guess taking it to service won't do 'cause I don't have any receipts of the purchase (it was used and I know about the issue).
Yesterday I tried to check the connections to the SIM reader module but no avail.
Maybe today I'll try to toast it with the heat gun.

If your phone asks for PIN when SIM is inserted then it's probably stolen and was blacklisted in international base of stolen phones used by operators worldwide.
If it isn't asking for PIN then it's 100% hardware fault. Better take it to some electronic repair service, because with the heatgun you can make it even worse...

I had that problem before. I think it's software-related (or maybe just a fluke). My OB is running on Nova 4.5.
I always use "network sim #1", but when I switched to my other network sim, which we'll call "network sim #2", it was ok for a couple of minutes then after that "NO SIM INSERTED" appeared.
After that, I rebooted and noticed that my phone was unusually slow... I still have the "NO SIM INSERTED" on the display.
I rebooted again and my phone still was slow and "Force Close" prompts appear one after another.
So I just re-flashed Nova 4.5... I didn't take the SIM out. And voila! 1 month and no "NO SIM INSERTED" messages again.

radkor said:
If your phone asks for PIN when SIM is inserted then it's probably stolen and was blacklisted in international base of stolen phones used by operators worldwide.
If it isn't asking for PIN then it's 100% hardware fault. Better take it to some electronic repair service, because with the heatgun you can make it even worse...
Click to expand...
Click to collapse
Not stolen. Not blacklisted. Just won't assume any SIM. From my searches this seems a pretty common issue that can strike at any time... (You are warned...)
I know the heatgun can easily kill it but I'm willing to take the risk. In other phones replacing the SIM reader module would fix it but the P970 is somewhat welded/glued to the shielding in the MoBo and I couldn't find a replacement part also.
Anyway, I bought this with the hope I could fix it, otherwise it'll be a cool media player and a nice development platform addition to my other android.
ajcantonio said:
I had that problem before. I think it's software-related (or maybe just a fluke). My OB is running on Nova 4.5.
I always use "network sim #1", but when I switched to my other network sim, which we'll call "network sim #2", it was ok for a couple of minutes then after that "NO SIM INSERTED" appeared.
After that, I rebooted and noticed that my phone was unusually slow... I still have the "NO SIM INSERTED" on the display.
I rebooted again and my phone still was slow and "Force Close" prompts appear one after another.
So I just re-flashed Nova 4.5... I didn't take the SIM out. And voila! 1 month and no "NO SIM INSERTED" messages again.
Click to expand...
Click to collapse
As of now, don't think its SW related anymore... I've flashed Nova (v8) and CM7 (n#11) a couple of times already.
Still, there are some radio files (AMSS?) that eventually could help. I'm trying to find those but the LG's seems harder to find.
Thank you all.

I've just read your post . I have exactly the same problem. I have also bought my OB with a hope that I could fix it . Did you found a solution for your problem ?
Thanks in advance.

aalmo1 said:
I've just read your post . I have exactly the same problem. I have also bought my OB with a hope that I could fix it . Did you found a solution for your problem ?
Thanks in advance.
Click to expand...
Click to collapse
maybe your phone has lock on mobile network?

same problem here :/
its all after my phone has been rooted!
it was via blackjack

Maybe some of you are wrong ! Maybe it`s software related.
If you root it with blackjack this dont`t kill or get your hardware malfunctioned because it only trick your firmware to get privileges. Hardware is not the answer.
Maybe you all must try the unbrick thread from Optimus Black Android Development with the option of Erase CP and flash .bin and .fls files on your OB.
It happened to me too when i was flashed CM nighly`s. The cure was to to flash nova rom and nova kernel v10c and look now my phone work very well whithout any SIM problems.

scamex said:
Maybe some of you are wrong ! Maybe it`s software related.
If you root it with blackjack this dont`t kill or get your hardware malfunctioned because it only trick your firmware to get privileges. Hardware is not the answer.
Maybe you all must try the unbrick thread from Optimus Black Android Development with the option of Erase CP and flash .bin and .fls files on your OB.
It happened to me too when i was flashed CM nighly`s. The cure was to to flash nova rom and nova kernel v10c and look now my phone work very well whithout any SIM problems.
Click to expand...
Click to collapse
I have tried to unbrick my phone this way but I cant activate "Erase entire CP".
Windows anabler "on" doesn't help too. I will try to install nova kernel v10c as you recommend without Erasing cp. Maybe it will help.
---------- Post added at 12:31 AM ---------- Previous post was at 12:25 AM ----------
dflt said:
maybe your phone has lock on mobile network?
Click to expand...
Click to collapse
I dont think there is Simlock on this phone. When I want to enter unlockcode it shows me "your phone is not personalized". So it seems there is no Simlock.

aalmo1 said:
I have tried to unbrick my phone this way but I cant activate "Erase entire CP".
Windows anabler "on" doesn't help too. I will try to install nova kernel v10c as you recommend without Erasing cp. Maybe it will help.
---------- Post added at 12:31 AM ---------- Previous post was at 12:25 AM ----------
I dont think there is Simlock on this phone. When I want to enter unlockcode it shows me "your phone is not personalized". So it seems there is no Simlock.
Click to expand...
Click to collapse
Exactly ! I think if you want that Erase Entire CP you must go in hidden menu of OB and tick CP USB instead of ...

scamex, thanks to your advices I have solved my problem. As you said I got to the hidden menu , then AP CP USB Switching and CP USB . After these steps I could check "Erase entire CP" in Smartflashtool . I have flashed my phone with v10c rom using .bin and .fls files and now I have the signal and my SIM is recognized again. Thanks so much again .

So now check your IMEI via *#06# and this one under your battery

aalmo1 said:
scamex, thanks to your advices I have solved my problem. As you said I got to the hidden menu , then AP CP USB Switching and CP USB . After these steps I could check "Erase entire CP" in Smartflashtool . I have flashed my phone with v10c rom using .bin and .fls files and now I have the signal and my SIM is recognized again. Thanks so much again .
Click to expand...
Click to collapse
About imei, check here :http://forum.xda-developers.com/showthread.php?t=1447311

I panicked when i saw my "new" Imei but thanks to Redpik I have chenged it easily back . It works , thanks.

Related

[Q] I think i bought a bricked X8 - help!

hi,
I bought a X8 by mail delivery from the internet and got a bricked phone (so it seems)!
Symptom is phone doesn't connect to GSM network, and although i can scan for networks i can't connect to them. Tried several networks, same result. Everything else seems to work fine.
I'm completely newbie to Android phones, and only bought this one to try to avoid to stay behind, but this was a lousy way to start. I've been browsing through the forum, but there's too much info which only makes it more confusing to me.
I tried connecting the phone to S1tool and msm7227setool but i can't find the SEMC flash drivers, and although i browsed through the forum stickies for them i didn't find them.
So, my questions are:
1- Can someone provide a link to the drivers?
2- Is the following link the best way to solve my problem?
http://forum.xda-developers.com/showthread.php?t=1304258&highlight=no+network
3- I also want to debrand the phone, from the 360 apps i assume the phone is from vodafone. Can you recommend a fast ROM with full features support? And a good noob proof flash tutorial..
4- Will any of the above operations remove my SP unlock?
Sorry if most (or all) of this questions are a repetition of past threads, but starting with a phone this way, i honestly feel like a donkey looking at a palace! (Portuguese proverb, not sure you'll understand)
Thanks, Regards!
madz78 said:
hi,
I bought a X8 by mail delivery from the internet and got a bricked phone (so it seems)!
Symptom is phone doesn't connect to GSM network, and although i can scan for networks i can't connect to them. Tried several networks, same result. Everything else seems to work fine.
I'm completely newbie to Android phones, and only bought this one to try to avoid to stay behind, but this was a lousy way to start. I've been browsing through the forum, but there's too much info which only makes it more confusing to me.
I tried connecting the phone to S1tool and msm7227setool but i can't find the SEMC flash drivers, and although i browsed through the forum stickies for them i didn't find them.
So, my questions are:
1- Can someone provide a link to the drivers?
2- Is the following link the best way to solve my problem?
http://forum.xda-developers.com/showthread.php?t=1304258&highlight=no+network
3- I also want to debrand the phone, from the 360 apps i assume the phone is from vodafone. Can you recommend a fast ROM with full features support? And a good noob proof flash tutorial..
4- Will any of the above operations remove my SP unlock?
Sorry if most (or all) of this questions are a repetition of past threads, but starting with a phone this way, i honestly feel like a donkey looking at a palace! (Portuguese proverb, not sure you'll understand)
Thanks, Regards!
Click to expand...
Click to collapse
I have a X8 on Vodafone, and when I repairded my X8 in PCC it removed the vodafone apps and icon from Settings :-D
Sent from my tablet running Honeycomb
IrishStuff09 said:
I have a X8 on Vodafone, and when I repairded my X8 in PCC it removed the vodafone apps and icon from Settings :-D
Sent from my tablet running Honeycomb
Click to expand...
Click to collapse
Just 4 curiosity how to make the vodafone icons appear again??just4fun
Sorry for off-topic thing
As irishstuff said u should try to update your phone with pc companion(google it) and try to update the software.After that if u want to root your phone and install recovery search in xda for x8toolbox , is the most noob-friendly thing u will find
X8invisible13 said:
Just 4 curiosity how to make the vodafone icons appear again??just4fun
Sorry for off-topic thing
As irishstuff said u should try to update your phone with pc companion(google it) and try to update the software.After that if u want to root your phone and install recovery search in xda for x8toolbox , is the most noob-friendly thing u will find
Click to expand...
Click to collapse
Thanx for clarifying that.
But, if i update the phone via PCC, won't i lose the sp unlock? I'm saying this cuz i read that the no network problem is due to sim lock protection.
madz78 said:
Thanx for clarifying that.
But, if i update the phone via PCC, won't i lose the sp unlock? I'm saying this cuz i read that the no network problem is due to sim lock protection.
Click to expand...
Click to collapse
sp unlock? You mean "SIM unlocked"?
No, you won't lose the unlocked SIM by simply flashing back to Stock through PC Companion (in case PCC tells you that there's no update available you need to resort to the Flashtool method).
As for the drivers ... best method would be to install PC Companion. However, if you don't want that crapware on your system I can upload you the drivers (out of PCC) in a ZIP - then you have to point Windows manually to the directory so it can find the appropriate driver (EDIT: shouldn't be much of a trouble if you're familiar with installing drivers by pointing Windows to the directory or the INF file).
The only situation where you might lose your SIM unlock is at unlocking the boot loader to enable installation of custom kernels, but before you head into that you better check the manufacturing date of your phone (sticker below the battery) and then look through this forum to work out if it's a candidate for hard bricking or not.
B.Jay said:
sp unlock? You mean "SIM unlocked"?
No, you won't lose the unlocked SIM by simply flashing back to Stock through PC Companion (in case PCC tells you that there's no update available you need to resort to the Flashtool method).
As for the drivers ... best method would be to install PC Companion. However, if you don't want that crapware on your system I can upload you the drivers (out of PCC) in a ZIP - then you have to point Windows manually to the directory so it can find the appropriate driver (EDIT: shouldn't be much of a trouble if you're familiar with installing drivers by pointing Windows to the directory or the INF file).
The only situation where you might lose your SIM unlock is at unlocking the boot loader to enable installation of custom kernels, but before you head into that you better check the manufacturing date of your phone (sticker below the battery) and then look through this forum to work out if it's a candidate for hard bricking or not.
Click to expand...
Click to collapse
Yup, it says up to date, just clicked repair to see if it works. crapware.. lol, yeah i'd appreciate that zip file, thanks.
I think the issue is exactly that, a bad boot loader unlock, at least all symptoms point to that.. all i see in no network threads seems to be pointing there.
Thanx!
P.S.- SP (service provider) Unlocked.
madz78 said:
yeah i'd appreciate that zip file, thanks.
Click to expand...
Click to collapse
Download here
The Sony Ericsson X8 (and possibly other SE phones) Android drivers (ADB / Smartphone / USB Flash Device) for Windows (incl. x64 Editions) out of the latest and greatest PC Companion crapware.
madz78 said:
I think the issue is exactly that, a bad boot loader unlock, at least all symptoms point to that.. all i see in no network threads seems to be pointing there.
Click to expand...
Click to collapse
Errr... no. A "unsuccessful" boot loader unlock would turn your device into a hard brick (no lights, no vibration, no screen). As you're able to boot up into Android the bootloader and kernel seems to be intact.
IF the previous owner (in case you bought it used) tinkered around with boot loader unlocking ...
Use the s1tool to verify if the boot loader is locked or not. If it's unlocked simply follow the tutorial in the Development section to relock the boot loader or try the trick deedii posted about first (she had the same problem that GSM radio went dead after unlocking the boot loader).
---------- Post added at 12:40 AM ---------- Previous post was at 12:36 AM ----------
*ping* driver ZIP download link inserted
Holy crap!
Thanx for the zip btw..
I hit Repair in PCC and it re-flashed the phone. Now, instead of no network, the phone doesn't recognize ANY SIM card!!
I checked boot loader with S1tool, and the phone is locked (i see R).
I'm starting to think maybe it's a hardware problem and not from ROM.
Any ideas? Thanks.
madz78 said:
Thanx for the zip btw..
Click to expand...
Click to collapse
No problem, you're welcome.
madz78 said:
I hit Repair in PCC and it re-flashed the phone. Now, instead of no network, the phone doesn't recognize ANY SIM card!!
I checked boot loader with S1tool, and the phone is locked (i see R).
I'm starting to think maybe it's a hardware problem and not from ROM.
Any ideas? Thanks.
Click to expand...
Click to collapse
Yes, the "R" means the boot loader is locked.
As for the mSD card ... here's where we enter "trouble reloaded":
- What card? Class? Size? Brand?
- Does the card hold any important data? If not try to reformat the card (FAT32!!!). If Android refuses to format the mSD simply use a card reader and re-format the mSD in Windows.
EDIT: Also, just to make sure everything's vanilla: could you please take a look into Settings -> About phone to confirm you're running the genuine SE baseband/kernel and not some custom kernel?
EDIT 2: Errrrrrrrr.... never mind ... I somehow misread "SIM card" as "SD card". My fault!
X8invisible13 said:
Just 4 curiosity how to make the vodafone icons appear again??just4fun
Sorry for off-topic thing
As irishstuff said u should try to update your phone with pc companion(google it) and try to update the software.After that if u want to root your phone and install recovery search in xda for x8toolbox , is the most noob-friendly thing u will find
Click to expand...
Click to collapse
I actually don't have a clue, but I was glad when thety went
I dont like operators branding the phone with the software
The only apps i had by the operator (vodafone IE) were
Gold Rush, Vodafone Music Store, SIM Settings and SIM Toolkit <- I have GDX and i still have toolkit. XD
I had the 'vodafone 360' option in Settings
Sent from my tablet running Honeycomb
B.B.- M76XX-TSNCJOLYM-53404015
kernel- 2.6.29 [email protected] #1
Thanks again.
madz78 said:
B.B.- M76XX-TSNCJOLYM-53404015
kernel- 2.6.29 [email protected] #1
Click to expand...
Click to collapse
Yes, that's definitely the genuine baseband and kernel.
However, no matter how hard I think it through I don't see a good reason why it won't accept ANY SIM card, as a SIM unlock (or carrier/operator unlock if you want to put it that way) is as good as permanent unless you play around with unlocking the bootloader and either do something wrong or face the problem that it suddenly reverts back to the original SIM lock (in case it got unlocked and didn't ship unlocked by default).
The only problem I know about is ... if you live in a region where you would actually need a E15a baseband but happen to have the E15i baseband (you know, has to do with the frequencies that get used to transmit between your phone and the tower) flashed - or the other way around - you won't be able to connect to the GSM/3G network - but even then the phone won't reject the SIM card but simply fail to find any network.
In that case the problem resolve would be as easy as swapping out the baseband through flashing by Flashtool.
Good morning,
This keeps getting more and more confusing... thank god you've been such a valuable help BJ!
Dunno if it's "don't accept SIM" as much as don't recognize them.. I usually remove PIN codes from all my SIM's but today i've popped a new one to see if anything different happened.. The phone asked me for pin and validated it, but after this it doesn't recognize it anymore, i get a SIM with a red "!" on top of it in the upper right corner of the screen (same icon you get without SIM in phone).
As for all the other cards, it doesn't appear such icon, the phone starts normally and then asks for language and after asks to "insert SIM and restart phone"..
I don't think baseband is the problem, i think it's definitely related to SIM card reading.
NOTE: Before seemed irrelevant but now seems important to say, before, when i scanned for networks and tried to connect to one (same from SIM), phone gave me a message saying something like "your SIM card doesn't allow connecting to this network".
The problem seems to be definitely SIM card reader, the big doubt is if it's HW or SW.
My best guess is SW, because he can read PIN's but then just locks.. Where is the SIM card reader "driver"? baseband, kernel, ROM? should i try to update all those?
Thanks again!
hello again,
i found this in SETool forum which seems to be exactly my problem.
E15i - (x8) it doesn't read sim card and hangs during unlocking
I've had a problem with XPERIA X8 (E15i) for a long time now and I can't fix it.
I was trying to unlock it. I updated Android to v. 2.1. I have credits, I turn on debugg mode, I installed drivers. I push 1,2,5 and press Unlock/Repair.
Unfortunately it didn't finish, the program froze and switched off (on Vista). It took 5 credits. After turning it back on it wouldn't log to the network, even though it saw the network. But it shows that the phone is unlocked. By Setool I installed the version form after the update. After that it stopped detecting the sim card.
In hosting I read that I should repeat the unlock. I reinstalled the drivers, downloaded setool's previous version (v1.1106), but the program hangs every time in the same place and it doesn't go to the end (see screen below). With v1.1107 there's the same problem. I tried on Vista and XP – no difference. I installed setool on my other computer, where there are no boxes, drivers or antiviruses and still I couldn't succeed.
Does anyone have some expirience with the x8?
Thx in advance for help.
---------------
Reply
1.
reflash phone with generic 2.1 firmware, repeat unlock procedure.
2.
to restore phone to original state, write as script most earlier secunits backup from backup\%imei% folder
Click to expand...
Click to collapse
Could this be a bad unlock problem?
Thanx.
IrishStuff09 said:
I actually don't have a clue, but I was glad when thety went
I dont like operators branding the phone with the software
The only apps i had by the operator (vodafone IE) were
Gold Rush, Vodafone Music Store, SIM Settings and SIM Toolkit <- I have GDX and i still have toolkit. XD
I had the 'vodafone 360' option in Settings
Sent from my tablet running Honeycomb
Click to expand...
Click to collapse
Sim toolkit is on every phone,not only on vodafone
Been reading more and more, and this seem to be a very common issue in SETool SIM unlocking. can anyone suggest a solution?
Thanks.
Hello again,
I've been trying to run msm7227 setool2 and semc, but seem to be getting nowhere.. enters debugging mode and nothing else. What am i doing wrong?
Also, i've read in the following thread that sometimes boot is unlocked and S1tool says it's locked, but i can't find SEUS to download anywhere in the forum..
http://forum.xda-developers.com/showthread.php?t=1404148&highlight=sim+card
HEEELLP!!!
Thanks.
Hi, madz ...
To pull it together:
- The "SIM reader" is a software that comes as a part of Android in the form of a system app (inside /system/app). You can't exchange the related parts as they are specific to the Android version, in case your thoughts are running into this direction.
- The problem with "SEtool" is more like this ...
Let us assume the phone was originally SIM locked (bound to only allow SIMs of a specific operator/carrier) and then got SIM unlocked. The original SIM lock will jump back into place once the the boot loader got unlocked.
My observation is that this problem should actually go away once the boot loader got re-locked again. That being said I also read various threads where the SIM lock didn't vanish and the phone had to be unlocked anew.
On another note, it also depends on how the phone got unlocked ... there's a difference if it got SIM unlocked through SEtool or through Omious (<-- I hope it's spelled right)
The one fact that remains: simply querying the boot loader status ("R" vs "r") does not make the SIM lock to fire.
- SEUS ... well ...
I found Update Service (SEUS) 2.11.10.7 in the depths of my hard drive. Going to slap it on MultiUpload for you in a minute - though I can't guarantee that it still works; all I know is that SEUS got discontinued (or something along that line). Wait for the edit of the download!
EDIT: MultiUpload swallowed the file --> Download link
---------- Post added at 01:07 AM ---------- Previous post was at 12:59 AM ----------
Missed this one ...
madz78 said:
I've been trying to run msm7227 setool2 and semc, but seem to be getting nowhere.. enters debugging mode and nothing else. What am i doing wrong?
Click to expand...
Click to collapse
Shouldn't you connect the phone in flash mode instead of USB-Debugging mode?
Flash Mode means:
- Pull the USB cable out of your computer but leave it attached to the phone
- Turn the phone OFF
- Start the software
- Press the Back button and connect the USB cable to the computer
KEEP THE BACK BUTTON PRESSED UNTIL THE PHONE IS RECOGNIZED!
(Note: Windows may want to install the "SEMC Flash Device" driver)
Hi BJ,
The phone is not locked! it accepts pin from all networks, but after this, simply doesn't read the cards anymore. I only talked about this because the thread i found in SETOOL forum explains in detail what's happening to me.
I dunno if what happens to people who have no network or sim locked due to bad boot loader unlock is the same or not. It would be nice to know, but in my thread no one except you steps up.
If unlocked, i believe it's SETool and not Omnius because i only see threads with this issue in SETool support (dozens of complains) and found nothing in Omnius.
I still believe that maybe there's a solution other than unlocking it again, but due to inexperience i fail to see it.
about msm7227: i'm sorry, i meant flash mode, and it detects the phone, sometimes.. but always hangs in 2nd line (can't remember what said, but i'll try it again in a while and post here).
Where exactly is the phone unlocked? ROM, kernel, baseband? Do you think re-flashing it could solve the problem?
Thanks again friend!
Regards.
madz78 said:
The phone is not locked! it accepts pin from all networks, but after this, simply doesn't read the cards anymore. [...]
I dunno if what happens to people who have no network or sim locked due to bad boot loader unlock is the same or not. It would be nice to know, but in my thread no one except you steps up.
Click to expand...
Click to collapse
My X8 came SIM unlocked by default. Since it's old enough, and therefore safe for boot loader unlocking, I gave it a try (even been as daring as to unlock while having GDX v021 flashed).
Connected and checked with s1tool that it's suited for unlocking: Pass
Unlocked the boot loader: Pass
Booted up (SIM does not have PIN1 set)...
Connecting to the GSM Network: Pass
Connecting to the APN for 3G Internet access: Pass
Reboot (to make sure it didn't brick): Pass
Re-locked boot loader: Pass
Checked with s1tool that boot loader is locked: Pass
Device still able to connect to GSM/3G: Pass
I didn't try to flash a custom kernel but just stayed with the stock kernel. During the whole testing scenario - from unlocking to re-locking - I didn't have any problems with GSM/3G network connectivity or troubles reading the SIM.
Like I wrote above the PIN1 check was disabled because sometimes GingerDX shows the "Network unlock" screen after inputting the PIN ... that's more-or-less a bug workaround.
madz78 said:
If unlocked, i believe it's SETool and not Omnius
Click to expand...
Click to collapse
Thank you for correcting the spelling of "Omnius" ... I was typing it from the top of my head and failed to recall how it's spelled.
madz78 said:
Where exactly is the phone unlocked? ROM, kernel, baseband? Do you think re-flashing it could solve the problem?
Click to expand...
Click to collapse
If you refer to "how is the SIM lock lifted" then I think the best persons to answer this question are the guys who cracked the boot loader. I don't know enough about how the low-level init of the phone really works ... the boot loader guys aren't very chatty about telling us how the low-level boot of the X8 works.
Since, in my case, the SIM unlock prevails when flashing a custom ROM on top of the stock kernel (keep in mind I never flashed a custom kernel, so I never altered the "baseband" partition) the unlock can't reside in the ROM partitions.
But ... as the problem only arises when tinkering around with the boot loader but didn't affect my phone during boot loader unlock / re-lock ... and this is now purely guessing ...
The boot loader unlock only replaces the boot loader binary with a altered one. So if the thing that tells the phone that it's SIM unlocked resides in the part of the NAND where the boot loader / kernel / baseband is located it can only be a digital certificate or some sort of a binary that gets loaded through "Stage 1" init (during which the boot loader and kernel gets loaded and all the security checking stuff happens). It can't be in the higher init routines where the initialized kernel is boot strapping the ROM as that would disable the SIM unlock when flashing a custom ROM.
If blagus or the kernel devs have some ideas it would be great to read a few lines from a source knowing about the low-level init routines (to actually understand how the X8 comes to life once the power button is pressed).
On another thought ... the msm7227 CPU also must have some kind of firmware (think of it similar to a BIOS like a PC has) to init itself and the hardware ... maybe the SIM unlock is somewhere in there?
EDIT: On a third thought ... it would seem almost logical that the SIM unlock stuff is stored somewhere in the "security" related part of the NAND (somewhere deep down at the low-level init). If the phone came locked and got unlocked at some point the original SIM lock will most likely spring back into place at boot loader unlocking - so the SIM locked/unlocked thingy has to be somewhere in the low-level boot init; otherwise it wouldn't disable a "soft unlock" once the boot loader got unlocked and replaced past the cracked one which bypasses a whole lot of the security checks so unsigned boot binaries (kernel) can be loaded and executed.

[Q] How to know bricked device original firmware

Hello!
I have a Samsung i9003 (aka Galaxy SL) which for some reasons has been semi-bricked by a fellow. The device boots forever with restarts, Samsung animation and Samsung logo for 5 minutes then starts over again. I have tried to flash it with four(4) different stock firmwares from samsung-updates using the CHN, YOG, ECT and TGY files. They all ed up in animation and Samsung logo then re-does that.
I am afraid I may be using wrong files and can't get it to boot, I want to know if I have a possibility of knowing what firmware was originally in the device so that I can re-do it.
PS: I know bit about using Odin, Pit files and Bootable SD's, so someone enlighten me on knowing the original carrier or firmware file under such caliber.
kizomanizo said:
Hello!
I have a Samsung i9003 (aka Galaxy SL) which for some reasons has been semi-bricked by a fellow. The device boots forever with restarts, Samsung animation and Samsung logo for 5 minutes then starts over again. I have tried to flash it with four(4) different stock firmwares from samsung-updates using the CHN, YOG, ECT and TGY files. They all ed up in animation and Samsung logo then re-does that.
I am afraid I may be using wrong files and can't get it to boot, I want to know if I have a possibility of knowing what firmware was originally in the device so that I can re-do it.
PS: I know bit about using Odin, Pit files and Bootable SD's, so someone enlighten me on knowing the original carrier or firmware file under such caliber.
Click to expand...
Click to collapse
Do you get error messages after flashing??? like when it tries to finish in CWM?
kizomanizo said:
PS: I know bit about using Odin, Pit files and Bootable SD's, so someone enlighten me on knowing the original carrier or firmware file under such caliber.
Click to expand...
Click to collapse
go here http://forum.xda-developers.com/showthread.php?t=1004647
Error Messages
Hello! Thanks for your support, I have different error messages depending on the file used and if the SD card is inserted or not. The most common error though is the one about failure to mount SDcard. I'll send the original error upon re-flash. it gives something like error series 7 or sorta. I'll be back later on today. I'll heck that link given and shall give feedback.
Firmware files
xsenman said:
go here http://forum.xda-developers.com/showthread.php?t=1004647
Click to expand...
Click to collapse
Thanks xsenman or the links but you have sent do work on a device that can boot up successfully, mine does not go past the boot logo. I was asking if someone knows a way to find the original firmware with a device that doesn't boot a'la IMEI use or Serial No:
kizomanizo said:
way to find the original firmware with a device that doesn't boot a'la IMEI use or Serial No:
Click to expand...
Click to collapse
use this to find out http://forum.xda-developers.com/showthread.php?t=1857054 and solutions from My Android Solutions
Razr xt910 with a fake sim
Hi
Please I would like to know if you can help me, I'm desperate. I have a razr xt910 with a fake sim, but it is not my fault.
I bought this phone from Amazon and it was supposed to be unlocked, but sadly it was locked.
I bought unlock codes from webpages with my Imei number and none of them worked, and one person told me that the reason why the codes don't work is because the firmware installed is a modified firmware and that the sim is incorrect. All the functions of the phone work perfectly, I can even conect to wifi, but I can't make phone calls. Please if someone knows a way to fix this problem I would be very greatfull.
This is the information of my phone
Motorola Droid Razr Xt910
System Version: 672.180.41.xt910.yoigo.en.es
Baseband Version:U_04.10.00R
hgvm said:
I can't make phone calls. Please if someone knows a way to fix this problem I would be very greatfull.
This is the information of my phone
Motorola Droid Razr Xt910
System Version: 672.180.41.xt910.yoigo.en.es
Baseband Version:U_04.10.00R
Click to expand...
Click to collapse
Check here as to what is your original firmware by entering your IMEI here
and check here if your phone has been reported stolen or blocked
Apparently you need to use a MicroSIM card and sometimes people just use a cutter to cut the Normal SIM card, as such if that is the case, could have been cut erroneously or damaged, suggest you try another SIM Card
Xsenman
Thank you very much for your answer, currently I am using a microsim that I requested to my Carrier here in my Country, so the microsim is not damage, beside if I test the microsim in other phone it works.
The problem is that when I insert the microsim in my phone, I get the following message: Sim network unlock pin. But when I insert the code I bought to unlock the phone, the code doesn't work.
hgvm said:
Xsenman
Thank you very much for your answer, currently I am using a microsim that I requested to my Carrier here in my Country, so the microsim is not damage, beside if I test the microsim in other phone it works.
The problem is that when I insert the microsim in my phone, I get the following message: Sim network unlock pin. But when I insert the code I bought to unlock the phone, the code doesn't work.
Click to expand...
Click to collapse
Have you tried getting the PIN from your carrier ? or If you have the manual of this phone, they would have mentioned the USIM lock code in it, For Galaxy S its 00000...would be something like that, written in the phone manual or even an app like this Since your phone is Motorola , you need to search for the correct forum to get better response, sorry
If all fails, you need to visit a Mobile tech center ( you can find them in shopping centers and sidewalks even) they will use a box to unlock it for you ( you need to pay off course)
Thanks for the answer again, sadly there are no motorola help centers where I live, so I am on my own now, I will try to install a clean firmware to see if that helps.
Thank you for the help

Phone does not connect to Network (started after being stuck at samsung logo)

Hi everyone,
I rooted my note and was using Jon ROM V3 for the last 3 months. Never had any malicious apps and my phone was working as usual.
Yesterday I took my phone and see that it is stuck at Samsung logo (an hour ago it was working fine). Tried reset and re-flashed ROM but no luck.
Later through download mode i flashed Official Indian Firmware(I live in India). Now I by passed the logo screen and the phone shows full signal bars but not able to connect to carrier network.
(tried all basic work out like removing battery/sim and re-inserting to phone and boot up)
I pressed power key and it did not show the power menu , it directly switched off mobile.
I rooted again with Philz kernel and flashed JON ROM. Still i see that my phone is not able to connect to any network. Also I observe that even here on this ROM when i press power key it directly turns off.
This is weird. I thought my IMEI was wiped off but im lucky to see that its still there.
I need your help. Im without my phone for the last 2 days now.
-
Jonathan
Note - I find that my IMEI number has been changed (to some generic IMEI 004999010640000) after i flashed the official firmware !!!! that's why it is not connecting to any network.
Someone please help me.
How did you flash the official firmware?
was it a tar file or a zip? I mean did you use odin?
chickoo.t90 said:
How did you flash the official firmware?
was it a tar file or a zip? I mean did you use odin?
Click to expand...
Click to collapse
It was a tar file The official Indian firmware I got from sammobile
either a glitch or you selected by accident clear efs.
anyways without efs backup hard to recover emei.
Do you get the simcard enter pinscreen on boot? If you dont then its not imei, if you do then you need someone like cvxcvx, search to fix it. That or Samsung
chickoo.t90 said:
How did you flash the official firmware?
was it a tar file or a zip? I mean did you use odin?
Click to expand...
Click to collapse
baz77 said:
either a glitch or you selected by accident clear efs.
anyways without efs backup hard to recover emei.
Do you get the simcard enter pinscreen on boot? If you dont then its not imei, if you do then you need someone like cvxcvx, search to fix it. That or Samsung
Click to expand...
Click to collapse
No I do not enter pin for simcard. I see my imei has been changed to 004999010640000. I tired fixing one problem and got onto another.
I guess there is no way other than sending my device to Samsung !
Anyways I appreciate your help. Thanks
jonastro said:
No I do not enter pin for simcard. I see my imei has been changed to 004999010640000. I tired fixing one problem and got onto another.
I guess there is no way other than sending my device to Samsung !
Anyways I appreciate your help. Thanks
Click to expand...
Click to collapse
You have a so called "developer IMEI". If you didn't safe your EFS then there is no real chance to restore it yourself.
There is a member (cxlcxl) who has hardware and can restore the original IMEI remotely.
But you still can use your device. Try to change the Sim Pin in the settings: you can use the same Pin for old and new (this is easier for me because sometimes I forget the new number).
After this the network connection should come back.
My workaround in my Pristine Custom Rom: one different jar-file that doesn't have the checks on startup from my old XXLSC dump. With this it works completely normal: Sim and Pin are always recognized from startup. I'm using this for many months now.
ThaiDai said:
You have a so called "developer IMEI". If you didn't safe your EFS then there is no real chance to restore it yourself.
There is a member (cxlcxl) who has hardware and can restore the original IMEI remotely.
But you still can use your device. Try to change the Sim Pin in the settings: you can use the same Pin for old and new (this is easier for me because sometimes I forget the new number).
After this the network connection should come back.
My workaround in my Pristine Custom Rom: one different jar-file that doesn't have the checks on startup from my old XXLSC dump. With this it works completely normal: Sim and Pin are always recognized from startup. I'm using this for many months now.
Click to expand...
Click to collapse
Thanks. BTW I jus gave my phone now to Samsung service center. They said its easy for them to restore my original IMEI and they charged me 150Rupess (3 Dollars) :good:
Really? Just $3
jonastro said:
Thanks. BTW I jus gave my phone now to Samsung service center. They said its easy for them to restore my original IMEI and they charged me 150Rupess (3 Dollars) :good:
Click to expand...
Click to collapse
sweet!
nokiamodeln91 said:
Really? Just $3
Click to expand...
Click to collapse
Aha , yes not joking.

[Q] No calling, no texting, everything else works

Hi everyone!
I bought recently a new galaxy s advanced and for some weird reason i can't make calls, can't text and can't receive anything. But i can unlock my sim without any problem and i can use mobile internet.
I had first the original gingerbread rom (i9070XXLK2), rupgraded it to 4.1.2 jelly bean(i9070XXLQE), rooted it, upgraded the kernel to this one: http://forum.xda-developers.com/showthread.php?t=2140597 and after that tried a cyanogen rom(this one => http://forum.xda-developers.com/showthread.php?t=2497660 ), went after the cyanogen back to the 4.1.2 but nothing works.
atm it is running original 4.1.2 rooted and cwm.
I also tried galaxSim but it doesn't support the galaxy s advanced, also the *#simlock# thing does not work. I am not sure there is a simlock on the phone because mobile internet works.
If you need more info just ask! Not really sure what information you need to know.
I have no idea what to do now, i hope some1 can help me.
samcool55 said:
Hi everyone!
I bought recently a new galaxy s advanced and for some weird reason i can't make calls, can't text and can't receive anything. But i can unlock my sim without any problem and i can use mobile internet.
I had first the original gingerbread rom, upgraded it to 4.1.2 jelly bean and after that tried a cyanogen rom, but none of them works.
I also rried galaxSim but it doesn't support the galaxy s advanced, also the *#simlock# thing does not work. I am not sure there is a simlock on the phone because mobile internet works.
I have no idea what to do now, i hope some1 can help me.
Click to expand...
Click to collapse
You must do Factory reset when you change ROM. Do it now.
Do you have I9070 or I9070P? On CM you do not have network unless you change tee folder if your phone is I9070P.
shut_down said:
You must do Factory reset when you change ROM. Do it now.
Do you have I9070 or I9070P? On CM you do not have network unless you change tee folder if your phone is I9070P.
Click to expand...
Click to collapse
I have factory resetted it 3 or 4 times (after every rom flash).
It's an I9070, not the P one.
If some1 tries to call me they hear an automated message tape thing that says my number is blocked and i need to call my provider.
I did call my provider and there is nothing blocking my number or the phone.
When i put my sim in another phone everything works fine so the issue must be in the phone itself.
Thanks for trying to help :highfive:
samcool55 said:
I have factory resetted it 3 or 4 times (after every rom flash).
It's an I9070, not the P one.
If some1 tries to call me they hear an automated message tape thing that says my number is blocked and i need to call my provider.
I did call my provider and there is nothing blocking my number or the phone.
When i put my sim in another phone everything works fine so the issue must be in the phone itself.
Thanks for trying to help :highfive:
Click to expand...
Click to collapse
Try to put some other SIM in phone. See what happens then. And did you wipe dalvik cache too? Try that.
Sent from my GT-I9070 using Tapatalk
shut_down said:
Try to put some other SIM in phone. See what happens then. And did you wipe dalvik cache too? Try that.
Sent from my GT-I9070 using Tapatalk
Click to expand...
Click to collapse
I tried 3 different SIM's but all from the same provider, i am going to visit a friend tomorrow to lend his SIM (he has another provider). I wiped dalvik cache every time i factory resetted it (after every rom flash)
Is it possible there is a piece of hardware in the phone blocking the calls and the messages?
Found out something new, if i do phone (the app) => call settings => additional settings, i get a message saying "network or sim card error".
I am searching for an hour now for a fix but i can't find anything. I will keep searching for another couple of hours, i really want to fix this.
samcool55 said:
I tried 3 different SIM's but all from the same provider, i am going to visit a friend tomorrow to lend his SIM (he has another provider). I wiped dalvik cache every time i factory resetted it (after every rom flash)
Is it possible there is a piece of hardware in the phone blocking the calls and the messages?
Found out something new, if i do phone (the app) => call settings => additional settings, i get a message saying "network or sim card error".
I am searching for an hour now for a fix but i can't find anything. I will keep searching for another couple of hours, i really want to fix this.
Click to expand...
Click to collapse
Are you sure it is not locked to some provider?
shut_down said:
Are you sure it is not locked to some provider?
Click to expand...
Click to collapse
I don't know, as far i can see there is no sign of a provider/region lock. During boot no logo from a provider, sim can be unlocked when it asks for my PIN.
I tried to figure out if there is a simlock with *#SIMLOCK# but the code does not work. Any idea how i can see if there is a sim-lock?
samcool55 said:
I don't know, as far i can see there is no sign of a provider/region lock. During boot no logo from a provider, sim can be unlocked when it asks for my PIN.
I tried to figure out if there is a simlock with *#SIMLOCK# but the code does not work. Any idea how i can see if there is a sim-lock?
Click to expand...
Click to collapse
I am not sure where you can look for that. And you bought from store or? You can go there and ask them maybe what is the problem. You have warranty?
shut_down said:
I am not sure where you can look for that. And you bought from store or? You can go there and ask them maybe what is the problem. You have warranty?
Click to expand...
Click to collapse
I bought it from an auction, a phone shop went bust and they sold thousands of phones. They had over 20 shops and they were not promoting a provider.
it was brand new in a sealed box and as far as i know i don't have warranty.
Is there a place to check if there is still a warranty on the phone?
EDIT: just checked and i have still warranry (produced at oktober 2012) but the problem i have now is, i flashed it a couple of times, isn't my warranty ruined now?
samcool55 said:
I bought it from an auction, a phone shop went bust and they sold thousands of phones. They had over 20 shops and they were not promoting a provider.
it was brand new in a sealed box and as far as i know i don't have warranty.
Is there a place to check if there is still a warranty on the phone?
Click to expand...
Click to collapse
I am not sure how is it in your country about that. You can go to some service center to see if the phone is locked to some carrier.
I just tried to check the binary counter, but as far as i can see it didn't move during the flashes and looks original
When i go in download mode i get this:
Odin mode
Product name: GT-I9070
Custom binary download: no
current binary: samsung official
I think this means it got still warranty?
If it is, i'm going to put back jelly bean on it and try to send it back to samsung, is there a chance they will fix it and won't find out i messed with it?
samcool55 said:
I just tried to check the binary counter, but as far as i can see it didn't move during the flashes and looks original
When i go in download mode i get this:
Odin mode
Product name: GT-I9070
Custom binary download: no
current binary: samsung official
I think this means it got still warranty?
If it is, i'm going to put back jelly bean on it and try to send it back to samsung, is there a chance they will fix it and won't find out i messed with it?
Click to expand...
Click to collapse
Yes, just go back to JB and you are good to go. And you can uninstall app that need root if you have any.
shut_down said:
Yes, just go back to JB and you are good to go. And you can uninstall app that need root if you have any.
Click to expand...
Click to collapse
Thanks for the help, just switched back to JB (stock version of course) checked the download screen again and it's still good,
No root stuff on the phone anymore, eveything looks how it's suppose to i think
requested to rma the phone and it will be sent tomorrow.
i hope they fix it! Again thanks for the help! :highfive:
Sad news, the phone is back from RMA and there is a simlock on it, but the problem is i can't find a method to remove it 4 free (don't want to pay even more for the damn thing). I am going to a shop from the original carrier over a couple of days(i know which carrier simlocked the crap out of it and they have shops not really far from here) but i am not sure they unlock it for free, and tbh the people that work there probably have no clue how to do it, so i don't have a lot of hope for that so i want to try it first myself if that's possible, but i tried already a couple of things and none of them works. Anyone an idea how i can remove it?
samcool55 said:
Sad news, the phone is back from RMA and there is a simlock on it, but the problem is i can't find a method to remove it 4 free (don't want to pay even more for the damn thing). I am going to a shop from the original carrier over a couple of days(i know which carrier simlocked the crap out of it and they have shops not really far from here) but i am not sure they unlock it for free, and tbh the people that work there probably have no clue how to do it, so i don't have a lot of hope for that so i want to try it first myself if that's possible, but i tried already a couple of things and none of them works. Anyone an idea how i can remove it?
Click to expand...
Click to collapse
I did not see anyone that unlocked sgsa here on the forum… And I did not see any guide about it for our device.
Sent from my GT-I9070 using Tapatalk
shut_down said:
I did not see anyone that unlocked sgsa here on the forum… And I did not see any guide about it for our device.
Sent from my GT-I9070 using Tapatalk
Click to expand...
Click to collapse
I was afraid of that, thanks to confirm. Went to the carrier which locked the phone and they said it is illegal to unlock it, which isn't true of course (checked it everywhere and it is legal) I will find a way to fix it with the carrier, thanks for the help.

[STOCK FIRMWARE] LG G4 SPRINT ZVG needed

Hello guys, my phone stuck in "Configuring your phone..." screen after restoring on factory default. I do not know what to do from now. Only that I can is to reflash my phone on current firmware. My phone is from Sprint but I cannot contact them for help because I am not their user. I google for current firmware and i am not have any luck to find it. Can you guys help me to obtain ZVG firmware for my LG G4, thanks!
nov0 said:
Hello guys, my phone stuck in "Configuring your phone..." screen after restoring on factory default. I do not know what to do from now. Only that I can is to reflash my phone on current firmware. My phone is from Sprint but I cannot contact them for help because I am not their user. I google for current firmware and i am not have any luck to find it. Can you guys help me to obtain ZVG firmware for my LG G4, thanks!
Click to expand...
Click to collapse
You are in luck buddy google lgg3 stuck on configuring device. Its like disconect wifi vol up and home. And u can bypass it. But google for proper procedure. There is no zvg tot available yyet. Once u get in let me know if its the nougat update yet.
---------- Post added at 09:09 PM ---------- Previous post was at 09:05 PM ----------
nov0 said:
Hello guys, my phone stuck in "Configuring your phone..." screen after restoring on factory default. I do not know what to do from now. Only that I can is to reflash my phone on current firmware. My phone is from Sprint but I cannot contact them for help because I am not their user. I google for current firmware and i am not have any luck to find it. Can you guys help me to obtain ZVG firmware for my LG G4, thanks!
Click to expand...
Click to collapse
Factory Reset, start configuring language, dont connect any WIFI or DATA and Next button after this the screen show Configuring Phone, press volume up + volume down - home button and button back, and Woola bypass the stupid activation
This is the method
Thanks guys, I managed to skip this step. I founded tutorial on youtube, but phone must be connected to WiFI, otherwise there is no skip option only back to connect.
I have another problem, now it says that SIM card is invalid. I cannot connect to mobile network. It seems it is SIM locked, but I used current SIM with this phone and had no problems. Do you know guys is there some possible way to unlock again this phone without root? Again, I cannot contact Sprint because I'm not their user.
nov0 said:
Thanks guys, I managed to skip this step. I founded tutorial on youtube, but phone must be connected to WiFI, otherwise there is no skip option only back to connect.
I have another problem, now it says that SIM card is invalid. I cannot connect to mobile network. It seems it is SIM locked, but I used current SIM with this phone and had no problems. Do you know guys is there some possible way to unlock again this phone without root? Again, I cannot contact Sprint because I'm not their user.
Click to expand...
Click to collapse
you might be able to try some trusted 3rd party unlckers no way to downgrade either or brick will result to try inter nat rom so thats not an option either and problem with some 3rd party unlock companys is sprint still has apns greyed out so not able to mod them some have reported ok but basicly now its a monetary risk and in my opinion the device isnt really worth investing any cash into except for the camera no root methods are available beyond zv6 firmware no downgrade possible
---------- Post added at 02:49 PM ---------- Previous post was at 02:46 PM ----------
you might look for sevice menu ## codes look for a setting that says itson and disable it may need msl code n wich is still obtainable throught sprint its hard work but i have done it many times
mayers unlock method sometimes requires manual diable of itson to get rid of invalid sim card notification
no root needed
I bringed my device in local service shop to unlock, but they returned phone more damaged. Device can't turn on and when I connect charger there is no charging indicator, nothing. When I connect phone to computer it is recognized as "Qualcomm HS-USB QDLoader 9008". Is there any solution to unbrick this phone? Any answer would help. Thanks!
nov0 said:
I bringed my device in local service shop to unlock, but they returned phone more damaged. Device can't turn on and when I connect charger there is no charging indicator, nothing. When I connect phone to computer it is recognized as "Qualcomm HS-USB QDLoader 9008". Is there any solution to unbrick this phone? Any answer would help. Thanks!
Click to expand...
Click to collapse
I would take it back to said shop and raise hell they damaged it they need to replace it. What firmware were u on. It dont really matter. The firehose.bin for qfil to reflash fone doesnt work for g4. Unless someone has made a new one but i havent seen one yet. You might try lgs waranty. Claim to have bootlooped. Or something like that
TheMadScientist420 said:
I would take it back to said shop and raise hell they damaged it they need to replace it. What firmware were u on. It dont really matter. The firehose.bin for qfil to reflash fone doesnt work for g4. Unless someone has made a new one but i havent seen one yet. You might try lgs waranty. Claim to have bootlooped. Or something like that
Click to expand...
Click to collapse
i think local store trying to downgrade ZVE/ZVF and has 9008. But it hasnt octoplus/z3x for fix it.
MFKilla said:
i think local store trying to downgrade ZVE/ZVF and has 9008. But it hasnt octoplus/z3x for fix it.
Click to expand...
Click to collapse
I dont know. If i tear up someones phone im working on. Its kinda my obligation to fix or replace it. I do unlock what phones i can. Repair. Root and modify. I wo far have a perfect track record with customer devices. But. If it ever came about i brick one. Like said. I kinda feel obligated. Or is that not a thing but a courtousy?
TheMadScientist420 said:
I dont know. If i tear up someones phone im working on. Its kinda my obligation to fix or replace it. I do unlock what phones i can. Repair. Root and modify. I wo far have a perfect track record with customer devices. But. If it ever came about i brick one. Like said. I kinda feel obligated. Or is that not a thing but a courtousy?
Click to expand...
Click to collapse
Totally agree with you. But people are different.
I, too, have long ago discovered my telephone cemetery)

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