Hi guys,
My brother purchased an Xperia Z not too long ago, sim unlocked, and is now wondering if I could flash a custom rom on his device without removing the sim unlock, if it does. Here's some device info:
-originally on T Mobile network
-c6606
-stock rom, build 10.4.C.0.814
-android 4.3
-locked bootloader (device does not allow to unlock)
-rooted
-flashed both Philz and TWRP recovery
-we don't know which sim unlock method was used
My questions:
-Does flashing a custom ROM, e.g. cm based RR, remove the phones sim unlock?
-If so, are there any safe ROMs to flash?
-Some doubt I'd like to clear as it is not my phone: I haven't seen much ROMs for c6606. What features would be removed if I flashed a c6603 (or the other one, c6602, I believe)? Does this affect sim unlock?
Thanks
Juan
psycho-punk said:
You can't install roms other than stock based ones on locked bootloader, I think.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
Now that I look at the forum again, that's true. So, would flashing any of the LB stock roms affect sim unlock?
dirty_smurf45 said:
Now that I look at the forum again, that's true. So, would flashing any of the LB stock roms affect sim unlock?
Click to expand...
Click to collapse
No
Thank you all. I will proceed with the flashing.
No, but you can flash stock based roms. Because of SIM lock, also there would be a Bootloader locking.
If you want to unlock your phone, contact T-Mobile.
In Hungary they unlock it for 10000 HUF (use google to calculate)
Related
i buy the phone HTC DREAM from the internet (i'm from malaysia) so i don't have T MOBILE SIM, but it's already unlocked.
what happen if i rooted or flash the phone with custom rom such as JACHeroski and etc.
will the phone become locked again ??
if the phone is locked, can i still able to like root and flash the phone ??
a rooted phone with custom rom, can eliminate the unlocking process ???
thx in advance
sorry for my poor english
keatliang2005 said:
i buy the phone HTC DREAM from the internet (i'm from malaysia) so i don't have T MOBILE SIM, but it's already unlocked.
what happen if i rooted or flash the phone with custom rom such as JACHeroski and etc.
will the phone become locked again ??
if the phone is locked, can i still able to like root and flash the phone ??
a rooted phone with custom rom, can eliminate the unlocking process ???
thx in advance
sorry for my poor english
Click to expand...
Click to collapse
No. A custom ROM wouldn't lock or unlock the phone. It can be unlocked for any SIM and still be stock firmware, it can also be unlocked for any SIM and have a custom rom.
The two things are completely different.
Hope this helps.
You can do whatever you want to any rom, and that won't affect anything that makes it unlocked
thx for replying,
so meaning, currently the phone is unlocked, and i downgrade to RC29
so it wont be locked again ?
because need to downgrade to root-ed the firmware....
is this mean, downgrade my unlocked phone firmware to RC29
in the process, it will not reset my phone from unlock back to lock status ??
if it will not make my phone locked back again during the process
and i success downgrade to RC29 i can gain root access, then i can update to custom firmware
so another question, in the upgrading process (flasing to custom firmware or cupcake 1.5) will it set back from unlock to locked ??
sorry for my bad english
appreciate for replying, i need to know before i done anything
in the process,
Hi. I also have an unlocked phone. It was unlocked prior I downgraded it, and flashed new custom roms, and it is still unlocked. As the others said no need to worry, if i'm right the locking thing is in deeper level. Of course everything you do with your phone is your responsibility.
eami said:
Hi. I also have an unlocked phone. It was unlocked prior I downgraded it, and flashed new custom roms, and it is still unlocked. As the others said no need to worry, if i'm right the locking thing is in deeper level. Of course everything you do with your phone is your responsibility.
Click to expand...
Click to collapse
thx for the reply, now i can do the firmware flashing
unlock after root?
NPerry said:
No. A custom ROM wouldn't lock or unlock the phone. It can be unlocked for any SIM and still be stock firmware, it can also be unlocked for any SIM and have a custom rom.
The two things are completely different.
Hope this helps.
Click to expand...
Click to collapse
Can T-mobile still unlock the phone after I rooted it or would they know that I put a custom rom on it??
c_licious said:
Can T-mobile still unlock the phone after I rooted it or would they know that I put a custom rom on it??
Click to expand...
Click to collapse
Yes, you can still unlock it through T-Mo. No one at T-Mo needs to have physical access to your phone, they can give you an unlock code over the phone.
c_licious said:
Can T-mobile still unlock the phone after I rooted it or would they know that I put a custom rom on it??
Click to expand...
Click to collapse
One has nothing to do with the other. ROMs have nothing to do with the SIM cards and SIM cards have nothing to do with ROMs. T-Mobile isn't going to come to your house and spank you for having a custom ROM because they "know"
DirectMatrix said:
One has nothing to do with the other. ROMs have nothing to do with the SIM cards and SIM cards have nothing to do with ROMs. T-Mobile isn't going to come to your house and spank you for having a custom ROM because they "know"
Click to expand...
Click to collapse
Hmm highly unfortunate. Wouldn't have minded a little love tap from Cindy with Customer Service LOL
Thanks buddy!
Hey guys, I am fairly new to the android phones, (recently came from an iPhone) but I had heard so much about the freedoms with the Android os so I decided to switch.
I purchased the Sony Xperia T (LT30a) locked on the Bell mobility LTE network. I have really wanted to unlock the bootloader, so when I went in to check it said "Bootloader Unlock Allowed: NO". after some searching I read that it was my carrier preventing the bootloader from being unlocked, and that if I followed the following simple steps, it would change the message to :"Bootloader Unlock Allowed: YES". so here is what I did:
1. Flashed a Generic firmware to my phone (ICS it was a uk generic) which then changed my model number in "About phone" from LT30a to LT30p and removed all the bell branding.
2. Using an IMEI number, i was able to get an unlock code and unlocked the phones sim card to work on any network, and have tested and it does work.
the problem I am having is that even after doing this, the bootloader is still "locked" and can not be unlocked. I have taken a look at the methods for the test pin, but that involves removing the battery to view the motherboard, which sucks because this phone the battery is not removable. if anyone know a free or paid way to unlock the bootloader on the Xperia T LT30a or LT30p models, please let me know! thanks.
I dont know where you read that, but it is wrong and there is no way to change that message.
If it says no, then your bootloader can not be unlocked.
Its not Sony's fault, its not googles fault, its Bells fault for being a dev unfriendly provider.
Test point method will not work even if we could remove the battery, that loophole has been closed in 2012 devices.
gregbradley said:
I dont know where you read that, but it is wrong and there is no way to change that message.
If it says no, then your bootloader can not be unlocked.
Its not Sony's fault, its not googles fault, its Bells fault for being a dev unfriendly provider.
Test point method will not work even if we could remove the battery, that loophole has been closed in 2012 devices.
Click to expand...
Click to collapse
ok well thank you very much! I guess my next question is.. is there any way at all to install a custom ROM such as cyanogen mod 10 ? or if you know of any better ones while my bootloader is locked?
Robe8691 said:
ok well thank you very much! I guess my next question is.. is there any way at all to install a custom ROM such as cyanogen mod 10 ? or if you know of any better ones while my bootloader is locked?
Click to expand...
Click to collapse
You can only install stock based custom roms because you wony be able to flash a custom kernel with a locked bootloader. Therefore there is no hope for cyanogenmod, AOKP or MUIU
There are several in the Dev section to choose from, ranging from early ICS firmwares to the latest JB firmware.
I dont recommend Roms (Even my own) as choosing a rom should be a personal thing, but the I am currently on Timin8rs rooted and deodexed JB rom which you can flash.
You will need to root your phone in order to flash a recovery, then flash the .zip for the rom using that recovery.
Find all instructions for doing that in the All in one thread. Its the first thread in the Q&A section.
good luck and if you need extra help after reading up on what you need to do then ask. But remember to read up first!
gregbradley said:
You can only install stock based custom roms because you wony be able to flash a custom kernel with a locked bootloader. Therefore there is no hope for cyanogenmod, AOKP or MUIU
There are several in the Dev section to choose from, ranging from early ICS firmwares to the latest JB firmware.
I dont recommend Roms (Even my own) as choosing a rom should be a personal thing, but the I am currently on Timin8rs rooted and deodexed JB rom which you can flash.
You will need to root your phone in order to flash a recovery, then flash the .zip for the rom using that recovery.
Find all instructions for doing that in the All in one thread. Its the first thread in the Q&A section.
good luck and if you need extra help after reading up on what you need to do then ask. But remember to read up first!
Click to expand...
Click to collapse
thank you very much! hopefully sometime in the near future they come out with a way to fix this problem, and believe me, I do not blame sony at all for this
Sorry for the double post! But I just wanted to say, that if anyone needs help testing different roms and/or ways of unlocking a locked bootloader, I do have a sim unlocked xperia T and just wanted to throw this out, but if sony does not "perma lock" the bootloader, and if it is infact the carrier, then would this not prove that it is sonething in the firmware? I spoke with my sister who is a manager for a bell store here, acording to her, Bell is not authorized to open, or attempt to fix this phone, it is simply sent to sony for repairs.. Just makes me wonder because if Bell can not open the phone, then they must have used some sort of software.. I have always thought of software as "semi-permenant" that it can be reversed , and that its only a matter of figuring out how to reverse it?
Sent from my LT30p using xda app-developers app
Good Day!, i purchase a z1 on Claro El salvador, phone is still runing 4.2.2 and theres no signs on an update and of course the bootloader is locked, can i update to kit kiat just by flashing the firmware using flash tool, or im just **** up? :s
sFranKv said:
Good Day!, i purchase a z1 on Claro El salvador, phone is still runing 4.2.2 and theres no signs on an update and of course the bootloader is locked, can i update to kit kiat just by flashing the firmware using flash tool, or im just **** up? :s
Click to expand...
Click to collapse
Download first the flashtool then download ftf filein the general section..be sure to download the correct model number..you can update to 4.4 by this.. What country are you from?
23852392 9
lelouch20 said:
Download first the flashtool then download ftf filein the general section..be sure to download the correct model number..you can update to 4.4 by this.. What country are you from?
Click to expand...
Click to collapse
El Salvador, model number is c6902, so its doesnt matter if i have a locked bootloader i can just flash any ftf file?
Yup..but make sure that you only flash c6902 ftf..or you will problems later...in locked bootloaders you cant flash custom kernels..thats it..as long as it is stock you can flash it..
lelouch20 said:
Yup..but make sure that you only flash c6902 ftf..or you will problems later...in locked bootloaders you cant flash custom kernels..thats it..as long as it is stock you can flash it..
Click to expand...
Click to collapse
Great!, tnx a lot for the help!.
sFranKv said:
Great!, tnx a lot for the help!.
Click to expand...
Click to collapse
Happy to help mate...
Branded phone. on stock 14.2.a.1.136
I have a question, Would my phone Imei number set itself to 000000000 if I flash the kitkat rom for my device? I tried flashing a stock rom on another build number which was unbranded and that resulted in no service, no connection to my sim manufacturer or able to look up the kernel, nothing worked. So please reply to my post. My phone is bound for 12 months and I would really like to flash a custom rom like Cyanogen on my device. Is there a way to do this or do I have to wait for a year?
After searching the xda forums I finally found a way to get my phone service up and running again.
My phone is Sony Xperia z1 build 6903 Stock 14.2.a.1.136. bound to a norwegian phone service named Telenor.
Any help or tips are much appreciated, I would really like to avoid encountering the same problem again it costed me alot of grief and will not continue to flash or do anything regarding my phone until someone would be kind enough to point me towards the how to's. Thank you for reading
The "how to's" are very well sign posted in the general and development threads, they are stickies
No, you will not lose IMEI
Thx for replying to my post. one up
gregbradley said:
The "how to's" are very well sign posted in the general and development threads, they are stickies
No, you will not lose IMEI
Click to expand...
Click to collapse
I flashed a rom on saturday, stock unbranded. resulted in my IMEI settings to dissappear. They came reapeared after i flashed 290 build back on my phone.
can I ask you to please point me to the right thread regarding this problem?
floezz said:
I flashed a rom on saturday, stock unbranded. resulted in my IMEI settings to dissappear. They came reapeared after i flashed 290 build back on my phone.
can I ask you to please point me to the right thread regarding this problem?
Click to expand...
Click to collapse
Flash a 534 FTF
instal dual recovery
flash SuperSU from chainfire
flash a prerooted 4,4 rom
21 times this week.....
floezz said:
I have a question, Would my phone Imei number set itself to 000000000 if I flash the kitkat rom for my device? I tried flashing a stock rom on another build number which was unbranded and that resulted in no service, no connection to my sim manufacturer or able to look up the kernel, nothing worked. So please reply to my post. My phone is bound for 12 months and I would really like to flash a custom rom like Cyanogen on my device. Is there a way to do this or do I have to wait for a year?
After searching the xda forums I finally found a way to get my phone service up and running again.
My phone is Sony Xperia z1 build 6903 Stock 14.2.a.1.136. bound to a norwegian phone service named Telenor.
Any help or tips are much appreciated, I would really like to avoid encountering the same problem again it costed me alot of grief and will not continue to flash or do anything regarding my phone until someone would be kind enough to point me towards the how to's. Thank you for reading
Click to expand...
Click to collapse
you cant use cyanogen rom bcoz it needs a custom kernel, and for you to be able to flash custom kernel you must have an unlocked bootloader..
im not an expert here but i think you cant unlock your bootloader if it is simlocked to your operator
you can only use modified stock rom as mention here by "gregbradley"
so i think you'll have to wait for 12 months for you to flash cyanogen based rom
Sim lock had nothing to do with boot loader unlock. Some Sim locked devices can be unlocked, some Sim free devices can not be unlocked
Sent from my C6903 using XDA Premium 4 mobile app
Well i already have the sim unlock code. so i Will still use the same sim card, but how do warp into the sim unlock mode? I tried setting in another sim card but the phone just asked me to insert the pin for that as well. Then again I would love to unlock my phone and use the same sim card, only difference the phone will be totally mine. So i can flash whatever rom and kernel that suits me. I have been using cyanogen since day one and would love continue to do so.
floezz said:
Well i already have the sim unlock code. so i Will still use the same sim card, but how do warp into the sim unlock mode? I tried setting in another sim card but the phone just asked me to insert the pin for that as well. Then again I would love to unlock my phone and use the same sim card, only difference the phone will be totally mine. So i can flash whatever rom and kernel that suits me. I have been using cyanogen since day one and would love continue to do so.
Click to expand...
Click to collapse
Your SIM unlock code will not unlock the bootloader, so you will still be unable to flash custom kernels.
Please read what I have said, SIM unlock has nothing to do with Bootloader unlock.
It is true most branded phones have bootloaders which cannot be unlocked and most SIM free phones canbe unlocked. But that is not an exclusive rule.
If you cannot unlock it now, entering a SIM unlock code will NOT unlock your bootloader.
To enter your SIM unlock code, contact your provider who would have given it to you.
delete
My settings
Deleted
Sent from my C6903 using XDA Premium 4 mobile app
You may want to not show your IMEI number to the world.
You can now goto the Sony website and unlock your bootloader using the official way. You can do this whilst you are still SIM locked, proving my point that SIM lock has nothing to do with bootloader unlock
What possible harm can be done with my imei number? Well sim lock certainly voids the service connection flashing builds earlier than 290.
Sent from my C6903 using XDA Premium 4 mobile app
floezz said:
What possible harm can be done with my imei number?
Click to expand...
Click to collapse
If you don't know, then don't worry about it....but now anyone in the world can block your phone
Well sim lock certainly voids the service connection flashing builds earlier than 290.
Sent from my C6903 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
That's not the SIM lock that does that. It does it on my phone and its SIM free.
Ok
---------- Post added at 12:38 PM ---------- Previous post was at 12:28 PM ----------
gregbradley said:
If you don't know, then don't worry about it....but now anyone in the world can block your phone That's not the SIM lock that does that. It does it on my phone and its SIM free.
Click to expand...
Click to collapse
I deleted the post, now final question deleting the sim lock literally will then not unlock my bootloader, that I am able to do as of now. But Completely deleting the sim lock will then leave my phone at my disposal, right? Since I have the sim unlock code, but I need to know how to remove the sim lock from my phone, cause using another sim card, which is not from the same company does not jump start the unlock mode.
Tell me if I got everything right. when I insert the sim unlock the sim lock will be completely gone from my phone right? regardless of what kernel or rom I use? and it can never come back?
floezz said:
Ok
---------- Post added at 12:38 PM ---------- Previous post was at 12:28 PM ----------
I deleted the post, now final question deleting the sim lock literally will then not unlock my bootloader, that I am able to do as of now. But Completely deleting the sim lock will then leave my phone at my disposal, right? Since I have the sim unlock code, but I need to know how to remove the sim lock from my phone, cause using another sim card, which is not from the same company does not jump start the unlock mode.
Tell me if I got everything right. when I insert the sim unlock the sim lock will be completely gone from my phone right? regardless of what kernel or rom I use? and it can never come back?
Click to expand...
Click to collapse
Yes, just ask the provider of the sim unlock code how to enter it. It should be your network provider. SIM locks or restrictiosn are nothing to do with firmware, android versions or kernels.
Your bootloader can be unlocked now by visiting the official sony website.
Please do not confuse bootloader and sim lock. they are two different issues and you keep talking as if they are related.
In general, I would like ask about unlocking my Xperia LT30AT. I've unlocked a phone before but it has been a long time.
I seem to recall that when I unlocked my first phone, I downloaded a developer kit that you use to root and unlock the device. I am interested in doing that to my LT30at, but I don't want to use any custom roms like Cyanogenmod.
What I would like most of all to do: to
(1) root and unlock the phone,
(2) keep the (functionally) authentic Android OS, and
(3) Get all the AT&T apps off the phone for good.
...but I would settle for just the first one, for starters.
Any suggestions? Thanks! MX
MaxVenkman said:
In general, I would like ask about unlocking my Xperia LT30AT. I've unlocked a phone before but it has been a long time.
I seem to recall that when I unlocked my first phone, I downloaded a developer kit that you use to root and unlock the device. I am interested in doing that to my LT30at, but I don't want to use any custom roms like Cyanogenmod.
What I would like most of all to do: to
(1) root and unlock the phone,
(2) keep the (functionally) authentic Android OS, and
(3) Get all the AT&T apps off the phone for good.
...but I would settle for just the first one, for starters.
Any suggestions? Thanks! MX
Click to expand...
Click to collapse
it's interesting to me for the same model lt30at.
In addition I wanted to know if you lose your 4G LTE Thanks to all who respond
* P.S. many links to files in the root of the sony t is no longer usable
To root this device you should use the flashtool, you can't unlock bootloader at all. Me I rooted it added a recovery. Then flashed a unbranded firmware via the. Recovery. Kept root that caused everything to work pretty Ok now my att TL is rooted with 4.3 with a few bugs
Sent from my LT30p using Tapatalk
---------- Post added at 06:13 PM ---------- Previous post was at 06:12 PM ----------
And you keep lte
Sent from my LT30p using Tapatalk
MaxVenkman said:
In general, I would like ask about unlocking my Xperia LT30AT. I've unlocked a phone before but it has been a long time.
I seem to recall that when I unlocked my first phone, I downloaded a developer kit that you use to root and unlock the device. I am interested in doing that to my LT30at, but I don't want to use any custom roms like Cyanogenmod.
What I would like most of all to do: to
(1) root and unlock the phone,
(2) keep the (functionally) authentic Android OS, and
(3) Get all the AT&T apps off the phone for good.
...but I would settle for just the first one, for starters.
Any suggestions? Thanks! MX
Click to expand...
Click to collapse
Since you want the phone to be rooted, you have only 2 options:
1) If you want to stay on 4.1.2: flash any generic 4.1.2 FTF using Flashtool and exclude the baseband in the process, then root the device.
2) If you want to upgrade to 4.3: follow the guide in my signature.
Bootloader cannot be unlocked.
bsined said:
Since you want the phone to be rooted, you have only 2 options:
1) If you want to stay on 4.1.2: flash any generic 4.1.2 FTF using Flashtool and exclude the baseband in the process, then root the device.
2) If you want to upgrade to 4.3: follow the guide in my signature.
Bootloader cannot be unlocked.
Click to expand...
Click to collapse
Thk bro
Can i update my xperia TL to 4.3 without lock carrier by flashtool ?
belity said:
Thk bro
Can i update my xperia TL to 4.3 without lock carrier by flashtool ?
Click to expand...
Click to collapse
If you update to 4.3 using Flashtool you will lose root access to the device because there is no exploit available yet. Carrier lock is SIM lock and is managed separately from ROMs.
bsined said:
If you update to 4.3 using Flashtool you will lose root access to the device because there is no exploit available yet. Carrier lock is SIM lock and is managed separately from ROMs.
Click to expand...
Click to collapse
Thank bro . My xperia TL bootloader from service menu is : Bootloader unlock allowed : Yes
is it still lock carrier if i update to 4.3 by flashtool ?
belity said:
Thank bro . My xperia TL bootloader from service menu is : Bootloader unlock allowed : Yes
is it still lock carrier if i update to 4.3 by flashtool ?
Click to expand...
Click to collapse
Are you sure it's "bootliader unlock allowed: yes"? LT30at have always come with locked bootloader.
Carrier lock us SIM Lock. As I've said before it's nit affected by any kind of flashing. It's stored in a different location.
bsined said:
Are you sure it's "bootliader unlock allowed: yes"? LT30at have always come with locked bootloader.
Carrier lock us SIM Lock. As I've said before it's nit affected by any kind of flashing. It's stored in a different location.
Click to expand...
Click to collapse
Yes , Bootloader unlock allowed in my device is YES . Firmware is 9.1.F.1.120 , android 4.1.2
So can i update my device to 4.3 ?
You're probably the first person I've seen with a TL with at&t firmware (I'm assuming since it's 120 firmware) that has an unlockable bootloader.
Yea I must 2nd that how did that happen
Sent from my LT30p using Tapatalk
This might have a simple answer to a simple question, but I just want to be sure so as not to have to go about unlocking it again
Okay, so I have a GT-i9000 with which I flashed Cyanogenmod 11. Now I only SIM-unlocked it AFTER I flashed the custom rom, and it works. I can make calls and text other people. Now, if I decide to flash ANOTHER rom, should I do so? Will it "re-lock" or remove the unlock from my phone? I've read other posts that say that you should unlock the SIM with a stock rom, but that's not the case here. I flashed CM11 before the unlock..So should I just leave it or can I flash a new custom rom without the phone being re-locked.
- I understand that SIM unlocking is more of hardware programming than software, but why then should the ROM (whether stock or custom) matter?
Thank you! :laugh:
It shouldn't make any difference.
One time SIM unlocked = unlocked for good.
tetakpatalked from P5110