My Sony Xperia Z1 C6902 is not detecting sim cards - Xperia Z1 Q&A, Help & Troubleshooting

Hi,
I wanted to root my phone but I was running Android 4.3 JB with firmware 14.2.A.136 - which, through a certain amount of research, found that is not possible to be rooted unless and until it is downgraded to the previous version.
Accordingly, I took the help of C4E Tech's video on youtube for downgrading my software from 4.3. I followed all the steps shown in the video using flashtool application. The firmware to which i downgraded was C6902_14.1.G.1.534_Generic IN.ftf as I live in India and mine is the 3g version.
However, on completion of this process, I found that my phone booted all right, but it did not detect my Sim card, and instead threw a status on the lock screen saying Invalid sim.
Request you to please help me ASAP as I am stuck with no way out and have tried all ways using flashtool application to fix this issue but in vain. Thanks in advance.
Also, when the flashing process was going on, a warning message was shown in the log, which said, this file is ignored simlock.ta, I dont know whether this has anything to do with what's happened. Please help

rossvatsan said:
Hi,
I wanted to root my phone but I was running Android 4.3 JB with firmware 14.2.A.136 - which, through a certain amount of research, found that is not possible to be rooted unless and until it is downgraded to the previous version.
Accordingly, I took the help of C4E Tech's video on youtube for downgrading my software from 4.3. I followed all the steps shown in the video using flashtool application. The firmware to which i downgraded was C6902_14.1.G.1.534_Generic IN.ftf as I live in India and mine is the 3g version.
However, on completion of this process, I found that my phone booted all right, but it did not detect my Sim card, and instead threw a status on the lock screen saying Invalid sim.
Request you to please help me ASAP as I am stuck with no way out and have tried all ways using flashtool application to fix this issue but in vain. Thanks in advance.
Also, when the flashing process was going on, a warning message was shown in the log, which said, this file is ignored simlock.ta, I dont know whether this has anything to do with what's happened. Please help
Click to expand...
Click to collapse
This is 100% normal. When you go from 4.3 back to 534, your IMEI shows up as all zeros. Just root 534, install recovery and follow [Nut]'s inductions for flashing his pre-rooted 136 ROM. After you do this your IMEI will be back and your SIM will work fine
Sent from my Xperia Z1 using Tapatalk

301stSpartan said:
This is 100% normal. When you go from 4.3 back to 534, your IMEI shows up as all zeros. Just root 534, install recovery and follow [Nut]'s inductions for flashing his pre-rooted 136 ROM. After you do this your IMEI will be back and your SIM will work fine
Sent from my Xperia Z1 using Tapatalk
Click to expand...
Click to collapse
Thanks. Its a relief to hear its normal. Could you please tell me where I can find these instructions? Thanks.

301stSpartan said:
This is 100% normal. When you go from 4.3 back to 534, your IMEI shows up as all zeros. Just root 534, install recovery and follow [Nut]'s inductions for flashing his pre-rooted 136 ROM. After you do this your IMEI will be back and your SIM will work fine
Sent from my Xperia Z1 using Tapatalk
Click to expand...
Click to collapse
However, how do I unlock my bootloader considering that my IMEI number's gone. Because to unlock bootloader you need to send the IMEI number to Sony right, after which they send a mail to me with a key. Can you please tell me how you unlocked the bootloader of your phone after facing such a problem??:crying:

rossvatsan said:
Thanks. Its a relief to hear its normal. Could you please tell me where I can find these instructions? Thanks.
Click to expand...
Click to collapse
rossvatsan said:
However, how do I unlock my bootloader considering that my IMEI number's gone. Because to unlock bootloader you need to send the IMEI number to Sony right, after which they send a mail to me with a key. Can you please tell me how you unlocked the bootloader of your phone after facing such a problem??:crying:
Click to expand...
Click to collapse
Here you go: http://forum.xda-developers.com/showthread.php?t=2628185. A note: in the thread it says you must be on 290 rooted to do this. It isn't really true, you can do this if you are on 534 rooted. Just follow the same instructions. (To get from 534 to 290 rooted you do the same thing as you do from 290 to 136 basically, so you can skip the extra step and just go from 534 directly to 136).
Just wait until you're on the 136 rooted ROM and have your IMEI back and then unlock the bootloader. Just make sure you do a TA backup first!

301stSpartan said:
Here you go: http://forum.xda-developers.com/showthread.php?t=2628185. A note: in the thread it says you must be on 290 rooted to do this. It isn't really true, you can do this if you are on 534 rooted. Just follow the same instructions. (To get from 534 to 290 rooted you do the same thing as you do from 290 to 136 basically, so you can skip the extra step and just go from 534 directly to 136).
Just wait until you're on the 136 rooted ROM and have your IMEI back and then unlock the bootloader. Just make sure you do a TA backup first!
Click to expand...
Click to collapse
But how do i flash 136 rooted ROM without unlocked bootloader ? I am very confused, please help. To flash a ROM, you need to have a custom recovery installed right ?, and for custom recovery to be installed, you need to have the bootloader unlocked right?, But i am unable to unlock the bootloader because of non availability of IMEI:crying::crying:

rossvatsan said:
But how do i flash 136 rooted ROM without unlocked bootloader ? I am very confused, please help. To flash a ROM, you need to have a custom recovery installed right ?, and for custom recovery to be installed, you need to have the bootloader unlocked right?, But i am unable to unlock the bootloader because of non availability of IMEI:crying::crying:
Click to expand...
Click to collapse
No, no, and no. All you need is root to install recovery. If you even did any research on the link I sent you would see that the recovery recommended says in huge letters at the top that it is for both locked and unlocked bootloaders.
With a locked bootloader you can flash any ROM with a stock kernel, which the one I linked has.
Sent from my Xperia Z1 using Tapatalk

Related

[Q] Unlocked Bootloader, Unrooted OTA Update?

Heyy guys I have a XperiaSP which have unlocked bootloader and unrooted phone (just unrooted it a while ago). I would REALLY like to update my phone because there's too many bug here on Xperia SP. However, when the phone was still rooted I tried to update and it failed. Now after unroot I was going to update but then the fact that I unlocked the bootloader I am really worried about wiping/bricking the phone through OTA update. Any help pls?
P.S - My phone is barely Unlocked. It is nearly as stock and no custom recovery nor root is installed.:laugh:
Edit : By the way, is the Xperia SP really got Wi-Fi issues? My iPod got full signal on home's wifi and my SP got barely 1-2..
hmmm
dhisonnn said:
Heyy guys I have a XperiaSP which have unlocked bootloader and unrooted phone (just unrooted it a while ago). I would REALLY like to update my phone because there's too many bug here on Xperia SP. However, when the phone was still rooted I tried to update and it failed. Now after unroot I was going to update but then the fact that I unlocked the bootloader I am really worried about wiping/bricking the phone through OTA update. Any help pls?
P.S - My phone is barely Unlocked. It is nearly as stock and no custom recovery nor root is installed.:laugh:
Click to expand...
Click to collapse
did u try using PC companion? Is It ok there?
Or else I think you know that Sony's 4.3 update is on the corner. that may will solve your issue
madhukarmohan said:
did u try using PC companion? Is It ok there?
Or else I think you know that Sony's 4.3 update is on the corner. that may will solve your issue
Click to expand...
Click to collapse
Ahh yeah gonna try that ASAP. but I just forgot to mention that my primary laptop is now on service center (Got a bit problem there) so I can't really update my SP through that.
I tried updating just now through OTA. After the reboot a popup message appeared :
"Could not install new software version. Try again."
Is that because of my unlocked bootloader? Cos I unrooted my phone completely through SuperSU.
If so how to relock the bootloader??
If you want to relock the bootloader just use FlashTool. In your case because you don't have any custom Firmware on your phone this should be quite easy.
But I always thought when updating with having root access you can update but lose root. Maybe it didn't work (the update) because of a complete diffenent reason. Did you try it a second time?
Sent from my C5303 using xda app-developers app
Schokonuss said:
If you want to relock the bootloader just use FlashTool. In your case because you don't have any custom Firmware on your phone this should be quite easy.
But I always thought when updating with having root access you can update but lose root. Maybe it didn't work (the update) because of a complete diffenent reason. Did you try it a second time?
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
When I got my laptop back, I'm definitely going to relock the bootloader. But if I do something wrong, will it hard brick or something? (sorry for my parranoidness) and relocking is not much difference from unlocking right?
I tried installing the software update the second time. Unlocked BL, fully unrooted (No Super SU). Still fails gonna try at PCCompanion
dhisonnn said:
When I got my laptop back, I'm definitely going to relock the bootloader. But if I do something wrong, will it hard brick or something? (sorry for my parranoidness) and relocking is not much difference from unlocking right?
I tried installing the software update the second time. Unlocked BL, fully unrooted (No Super SU). Still fails gonna try at PCCompanion
Click to expand...
Click to collapse
You should flash stock ROM using flashtool, relock the bootloader, and then restore the TA partition
Sent from My XSP
Pulsa said:
You should flash stock ROM using flashtool, relock the bootloader, and then restore the TA partition
Sent from My XSP
Click to expand...
Click to collapse
I'm on my stock ROM now (Default Sony ROM right? But I've updated it before, does it count as stock?)
What's TA partition?
Sorry for noob Qs
I never do this before.So can I update my phone via pc companion via unlocked bootloader?On stock rom without root and recovery?
Sent from my C5303 using xda app-developers app
If you didn't flash anything on your device you can relock your bootloader without any problems. If you had a custom recovery, kernel or ROM and you relock your bootloader while having this custom recovery, kernel or ROM this should brick your phone (I think this could even be a hard brick) but if everything is stock (like I already said) there shouldn't be any problems with relocking
TA partition contains the working bravia engine (2) which gets lost if you unlock bootloader. If you had made a backup of the TA partition you could restore this and get the bravia engine back
Sent from my C5303 using xda app-developers app
Schokonuss said:
If you didn't flash anything on your device you can relock your bootloader without any problems. If you had a custom recovery, kernel or ROM and you relock your bootloader while having this custom recovery, kernel or ROM this should brick your phone (I think this could even be a hard brick) but if everything is stock (like I already said) there shouldn't be any problems with relocking
TA partition contains the working bravia engine (2) which gets lost if you unlock bootloader. If you had made a backup of the TA partition you could restore this and get the bravia engine back
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
if i didnt make backup (because no one told me to ) i cant install 4.3 update from Sony if comes out ?
Yes, you'll be able to get the 4.3 update without the TA partition. But, as everyone else here said, make sure you're on a stock ROM, with a locked bootloader.
Locked bootloader ----> You can use PC Companion or Flashtool to update your phone
Unlocked bootloader ------> Flashtool only
Also, don't try to update your phone via OTA while having your bootlader unlocked, because it will brick your device.
Schokonuss said:
If you didn't flash anything on your device you can relock your bootloader without any problems. If you had a custom recovery, kernel or ROM and you relock your bootloader while having this custom recovery, kernel or ROM this should brick your phone (I think this could even be a hard brick) but if everything is stock (like I already said) there shouldn't be any problems with relocking
TA partition contains the working bravia engine (2) which gets lost if you unlock bootloader. If you had made a backup of the TA partition you could restore this and get the bravia engine back
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
My original Stock Rom had been flashed to CM 10, but now I have flashed it back to stock rom that I tried to search online from this site. Is it counted as original stock rom or not? My phone is unlocked bootloader, and I got ota update but cannot install, I don't know why; maybe it has been changed or maybe of unlock bootloader?

[Q] Downgraded to .534 to Root... Please Help

I bought a c6903 from Negri Electronics and used it on AT&T.
I started off at .257 and system updated to .290. fastfoward a couple weeks and I want to root
So I had to go back to .534, when I went to download a tft, they did not have my exact model, so I used the british version.
Installed fine and everything, but when the phone booted there was no signal.(IMEI turned to 00000000... crap) I figured i would root and just flash a rom from there. I rooted with vroot and got a very funky chinese superuser. When I try to backup my TA partition it says it couldnt get root, but root checker gets root, it shows a prompt. I tried installing superuser from the play store. Is there a way i can just get back to .290 for my model, or what should I do help is really needed so thank you.
I want to end up at cm11
to sum it up, I restored to .534 (british version, no signal, no imei) , rooted with vroot (annoying root computer wont recognize the root, I have debugging enabled), didnt unlock bootloader or anything like that yet.
Thanks for helping i just need my phone to have signal at least.
Togadood said:
I bought a c6903 from Negri Electronics and used it on AT&T.
I started off at .257 and system updated to .290. fastfoward a couple weeks and I want to root
So I had to go back to .534, when I went to download a tft, they did not have my exact model, so I used the british version.
Installed fine and everything, but when the phone booted there was no signal.(IMEI turned to 00000000... crap) I figured i would root and just flash a rom from there. I rooted with vroot and got a very funky chinese superuser. When I try to backup my TA partition it says it couldnt get root, but root checker gets root, it shows a prompt. I tried installing superuser from the play store. Is there a way i can just get back to .290 for my model, or what should I do help is really needed so thank you.
I want to end up at cm11
to sum it up, I restored to .534 (british version, no signal, no imei) , rooted with vroot (annoying root computer wont recognize the root, I have debugging enabled), didnt unlock bootloader or anything like that yet.
Thanks for helping i just need my phone to have signal at least.
Click to expand...
Click to collapse
Use for rooting this link: http://forum.xda-developers.com/showthread.php?t=1886460
Use V33 option 0. When you upgrade to 290 you will get your imei back.If you unlock your bootloader don't forget to make a TA backup for your DRM keys.
Regards
Sent from my Rooted C6903 using XDA Premium
You have this issues because you do not read carefully, You can't downgrade directly to .534, first you have to do is to downgrade to .257 and then to .534. Follow the instruction and all will be fine and remember to Backup TA before Unlock Bootloader.
Backup TA need root frist?
as what I know if you need root frist flash 534 file and root the phone
then ota to 257 and flash 257 kernel .is that correct?
Sent from my C6906 using xda app-developers app
paullu said:
Backup TA need root frist?
Click to expand...
Click to collapse
Yes
paullu said:
as what I know if you need root frist flash 534 file and root the phone
Click to expand...
Click to collapse
If you do this way you are under risk to have IMEI and Signal issue
paullu said:
then ota to 257 and flash 257 kernel .is that correct?
Click to expand...
Click to collapse
I don't know about that but to get root you have to be on .534, root with Vroot and then Backup TA and then Update, so what the kernel for, dual recovery? if you update to .290 you will wipe it anyway.
Okay I managed to back up my Ta, but now when I want to unlock the bootloader I need to submit my IMEI, but I have none. Should I take my IMEI from the box or is there another way around this? Btw there is a system update available right away to .257. What should I do? I just want to have service and be on cm11, so if I can just flash cm11 from this version (.534) somehow, that would be the best solution.
Togadood said:
Okay I managed to back up my Ta, but now when I want to unlock the bootloader I need to submit my IMEI, but I have none. Should I take my IMEI from the box or is there another way around this? Btw there is a system update available right away to .257. What should I do? I just want to have service and be on cm11, so if I can just flash cm11 from this version (.534) somehow, that would be the best solution.
Click to expand...
Click to collapse
If you did a backup of your TA and DRM keys you can do whatever you want now, if you want get you IMEI back you have to update to .290 and then Unlock Bootlader and then follow the installation of the CM11.
Togadood said:
I bought a c6903 from Negri Electronics
Click to expand...
Click to collapse
OT.
Is the one you got from Negri bootloader unlockable?
Did you check in the settings that the bootloader can be unlocked
IMEI use the one on the box

[Q] Rooting issues - 4.3, IMEI, not actually rooted etc....

Hi All
So firstly I should say I only have myself to blame. I'm quite a techy guy so I just assumed i'd be able to root my phone without any issues and pick it up as I go. What i've quickly found out is i'm in way over my head and i'm an absolute noob!
Any advice would be greatly appreciated from those guys out there that actually know what they are doing. I have read many forums but i'm still lost.
My story is as follows:
- I have a Z1 that was locked on stock firmware 4.4
- I read that it would be a good idea to unlock the bootloader so i did this
- I wanted to root my phone but from what I read I could see I would have to downgrade the firmware to 4.2. So this is what i did.
- By doing this I lost my IMEI number, got very worried i'd ruined my phone. I tried many things to restore it, there were a variety of different solutions online, none of them worked. I eventually flashed a 4.3 firmware i found on this forum which restored my IMEI.
- I then read through a few posts of people who had similar issues and advice was given to downgrade again (if i wanted to root) but this time exclude the baseband etc. I did this, but lost my IMEI again! the advice didn't work
- So I then went and updgraded again! to 4.3 to restore my IMEI and network access
- There doesn't seem to be a way to root on 4.3 so my phone isn't rooted, that's ok. But when i try to use my banking apps they don't work! they say my phone is rooted even though it isn't! I have checked with root checker
- Like an idiot, i didn't back up the phone when i first started doing all of this, i didn't really know what i was doing so I am now in a situation where i have the worst of both worlds. They are, i can either 1. downgrade the firmware to 4.2, root my phone but not have a valid IMEI and network access or 2. stay on 4.3, have a valid IMEI and not be rooted but certain apps think i'm rooted so i can't use them.
So all in all i've just messed things up and i'm in way over my head. I would really appreciate some advice
Thanks
Yes you are right.
Also, there is no issue with losing IMEI when downgrading, it happens to everyone, but it comes back when you upgrade.
Also, if you unlock the bootloader there is no need to downgrade, that is a locked bootloader method of rooting
You should root before unlocking the bootloader in order to backup the TA partition, but you are too late now...
Solution
1) Use flashtool to relock the bootloader
2) Use pccompanion to update to latest firmware
3) Unlock the bootloader again with flashtool
4) Flash a custom kernel for stock based ROMs
5) Install SuperSU from the play store.
DONE!
6317
gregbradley said:
Yes you are right.
Also, there is no issue with losing IMEI when downgrading, it happens to everyone, but it comes back when you upgrade.
Also, if you unlock the bootloader there is no need to downgrade, that is a locked bootloader method of rooting
You should root before unlocking the bootloader in order to backup the TA partition, but you are too late now...
Solution
1) Use flashtool to relock the bootloader
2) Use pccompanion to update to latest firmware
3) Unlock the bootloader again with flashtool
4) Flash a custom kernel for stock based ROMs
5) Install SuperSU from the play store.
DONE!
Click to expand...
Click to collapse
Hi Greg
Thank you very much for your quick response. I will try and follow your advice to the letter tonight/tomorrow and let you know how it goes.
Thanks again
retro100386 said:
Hi Greg
Thank you very much for your quick response. I will try and follow your advice to the letter tonight/tomorrow and let you know how it goes.
Thanks again
Click to expand...
Click to collapse
..and if you want to see the Video which help you to understand better just check the @gregbradley Signature or mine.
eclyptos said:
..and if you want to see the Video which help you to understand better just check the @gregbradley Signature or mine.
Click to expand...
Click to collapse
The video by shem is for locked bootloaders, he needs an unlocked bootloader method
gregbradley said:
The video by shem is for locked bootloaders, he needs an unlocked bootloader method
Click to expand...
Click to collapse
So we have to ask @shem2409 to do another vid for Unlocked Bootloaders...
eclyptos said:
So we have to ask @shem2409 to do another vid for Unlocked Bootloaders...
Click to expand...
Click to collapse
I don't think so, the unlocked bootloader method is very generic and there are hundreds (if not thousands) of guides and probably as many videos.
gregbradley said:
I don't think so, the unlocked bootloader method is very generic and there are hundreds (if not thousands) of guides and probably as many videos.
Click to expand...
Click to collapse
I know but as you see the users still do mistake anyway, even if there is a lot of vids with a clear explanation.
conflicting messages?
gregbradley said:
Yes you are right.
Also, there is no issue with losing IMEI when downgrading, it happens to everyone, but it comes back when you upgrade.
Also, if you unlock the bootloader there is no need to downgrade, that is a locked bootloader method of rooting
You should root before unlocking the bootloader in order to backup the TA partition, but you are too late now...
Solution
1) Use flashtool to relock the bootloader
2) Use pccompanion to update to latest firmware
3) Unlock the bootloader again with flashtool
4) Flash a custom kernel for stock based ROMs
5) Install SuperSU from the play store.
DONE!
Click to expand...
Click to collapse
Hi Greg, can you give me a bit more advice please.
i'm just looking at the tutorial to relock by bootloader. It says "before u relock bootloader u have to be on pure stock kernel (flash only the kernel.sin using flashtool), else the device WILL NOT BOOT after relock"
The problem is i'm already flashed on to an FTF image that was on this site. From so by doing this am i going to brick my phone? i'm confused and i don't want to make things work so your advice would be apprecaited
thanks
retro100386 said:
Hi Greg, can you give me a bit more advice please.
i'm just looking at the tutorial to relock by bootloader. It says "before u relock bootloader u have to be on pure stock kernel (flash only the kernel.sin using flashtool), else the device WILL NOT BOOT after relock"
The problem is i'm already flashed on to an FTF image that was on this site. From so by doing this am i going to brick my phone? i'm confused and i don't want to make things work so your advice would be apprecaited
thanks
Click to expand...
Click to collapse
Hi Greg
it's fine, i am just being stupid again, i just relocked without a problem, thanks again
http://www.lifehacker.com.au/2014/0...oid-kitkat-devices-in-one-tap-no-pc-required/
check this out

[Q] Z1 c903 Bootloader locking. Help!

Hello all! Im new in xda forum, so i will be greatefull if you help me with my Sony Z1 phone. I have Z1 c903 on android 5.0.2., and I was mad on sony becouse they didnt make update to 5.1, so i was looking on forum how to root and install some custom rom and make my phone updated. So i find on some thread that i should unlock bootloader, and i followed instructions and unlocked it, but without making some backup or anything else. So i have seen that there is official update for sony and i want to get back to lock bootloader. But when i enter flashtool and enter "blu" i click on relock bootloader, and start phone type *#*#service#*#* it say that my bootloader is still unlocked. How should i get back to locked bootloader or make official update to 5.1. Please make it more clear becouse i am pretty noob for android development and rest. Also i want to add that i have not rooted my phone or install some custom rom or other, i just have unlock bootloader and thats all. Could i get back my "DRM keys" and could i get back my ofiicial android. Thanks in advance.
koska92 said:
Hello all! Im new in xda forum, so i will be greatefull if you help me with my Sony Z1 phone. I have Z1 c903 on android 5.0.2., and I was mad on sony becouse they didnt make update to 5.1, so i was looking on forum how to root and install some custom rom and make my phone updated. So i find on some thread that i should unlock bootloader, and i followed instructions and unlocked it, but without making some backup or anything else. So i have seen that there is official update for sony and i want to get back to lock bootloader. But when i enter flashtool and enter "blu" i click on relock bootloader, and start phone type *#*#service#*#* it say that my bootloader is still unlocked. How should i get back to locked bootloader or make official update to 5.1. Please make it more clear becouse i am pretty noob for android development and rest. Also i want to add that i have not rooted my phone or install some custom rom or other, i just have unlock bootloader and thats all. Could i get back my "DRM keys" and could i get back my ofiicial android. Thanks in advance.
Click to expand...
Click to collapse
oh dear, you lost your drm keys.... thats not good....all sony own camera features (bionz, noise reduction...) are lost now. So without your drm keys, you dont get an advantage of locking bl again. SImply flash official sony 5.1.1 and here you are
Tutorial?
mo120697 said:
oh dear, you lost your drm keys.... thats not good....all sony own camera features (bionz, noise reduction...) are lost now. So without your drm keys, you dont get an advantage of locking bl again. SImply flash official sony 5.1.1 and here you are
Click to expand...
Click to collapse
Is there any tutorial how to flash 5.1.1. to my sony? Becouse i didnt root it, i is still my official 5.0.1 android.
koska92 said:
Is there any tutorial how to flash 5.1.1. to my sony? Becouse i didnt root it, i is still my official 5.0.1 android.
Click to expand...
Click to collapse
Download the ftf (general section) and flash via flashtool, but untick the 3 wipe boxes if You want t to keep your data
Thanks
mo120697 said:
Download the ftf (general section) and flash via flashtool, but untick the 3 wipe boxes if You want t to keep your data
Click to expand...
Click to collapse
Can you link me please?
koska92 said:
Can you link me please?
Click to expand...
Click to collapse
FTF:
https://drive.google.com/file/d/0B_mcadp7d-Ivb0RoQTdmT29NN0U/view?usp=sharing
Then start at step 11:
http://www.ibtimes.co.uk/how-instal...z3-z2-devices-via-xperifirm-flashtool-1492498

Help bootloader unlock allowed (no)

Hy friends iam new user at sony xperia device i buy a old xperia z (c6603) when i returned at home i do some search about flash custum rom and openning the bootloader when i tap a code in dealer *#.... I show the statut (bootloader unlock allowed (no)...
My question is can i open the bootloader..can i install custom rom with locked bootloader and root my device
znayver said:
Hy friends iam new user at sony xperia device i buy a old xperia z (c6603) when i returned at home i do some search about flash custum rom and openning the bootloader when i tap a code in dealer *#.... I show the statut (bootloader unlock allowed (no)...
My question is can i open the bootloader..can i install custom rom with locked bootloader and root my device
Click to expand...
Click to collapse
NO. You can't unlock your bootloader if 'unlock bootloader allowed = no'
Since you cannot unlock bootloader, therefore you cannot flash custom ROM on your phone.
Rooting phone do not always need bootloader to be unlocked. There will be some ways available to root your phone with LB.
Also there will be some ROMs available that can be flashed over LB. But they'll be based on stock and will not have more features rather than stock features.
You just need to search here on XDA
I suggest you not to flash any ROM on LB. You'll eventually get bootloops and maybe hard brick.
Regards,
hitman-xda
hitman-xda said:
NO. You can't unlock your bootloader if 'unlock bootloader allowed = no'
Since you cannot unlock bootloader, therefore you cannot flash custom ROM on your phone.
Rooting phone do not always need bootloader to be unlocked. There will be some ways available to root your phone with LB.
Also there will be some ROMs available that can be flashed over LB. But they'll be based on stock and will not have more features rather than stock features.
You just need to search here on XDA
I suggest you not to flash any ROM on LB. You'll eventually get bootloops and maybe hard brick.
Regards,
hitman-xda
Click to expand...
Click to collapse
Tnx a lot my friend can a repair shop change the statut from no to yes????can some on in the futur solve this issus??
znayver said:
Tnx a lot my friend can a repair shop change the statut from no to yes????can some on in the futur solve this issus??
Click to expand...
Click to collapse
Nope! As much as I know, you cannot change status from 'no to yes' rather than changing your motherboard to do so. It'll cost you more than you buyed it.
It is related to TA Partition. And EVERY phone has its unique TA. So no one can change its status. Flashing other phones TA to your phone will brick your device.
Regards,
hitman-xda
hitman-xda said:
Nope! As much as I know, you cannot change status from 'no to yes' rather than changing your motherboard to do so. It'll cost you more than you buyed it.
It is related to TA Partition. And EVERY phone has its unique TA. So no one can change its status. Flashing other phones TA to your phone will brick your device.
Regards,
hitman-xda
Click to expand...
Click to collapse
Tnnnnx my friend for your great answer...tell me can i flash any stock rom?i have c 6603 (oronge)
znayver said:
Tnnnnx my friend for your great answer...tell me can i flash any stock rom?i have c 6603 (oronge)
Click to expand...
Click to collapse
Have a look;
http://forum.xda-developers.com/xperia-z/development
UB = Unlocked Bootloader
LB = Locked Bootloader
You can only flash ROMs with LB label.
Choose wisely Flash correctly.
Regards,
hitman-xda
hitman-xda said:
Have a look;
http://forum.xda-developers.com/xperia-z/development
UB = Unlocked Bootloader
LB = Locked Bootloader
You can only flash ROMs with LB label.
Choose wisely Flash correctly.
Regards,
hitman-xda
Click to expand...
Click to collapse
Tnx my dear but i tell you if i can flash official stock rom any stock rom because i wanna flash the official rom of(morroco) note:when i turn on my phone the logo of (oronge) appear...
Update:i noticed that when i buy my phone the bootloared statut is allowed:yes but when i update via ota to lollipop the BL come allowed (no) where are the probleme
Edit2 :My phone is Unlock Allowed:NO but i can use every sim on my phone and it's work fine!My phone is Unlock Allowed:NO but i can use every sim on my phone and it's work fine!
znayver said:
Tnx my dear but i tell you if i can flash official stock rom any stock rom because i wanna flash the official rom of(morroco) note:when i turn on my phone the logo of (oronge) appear...
Update:i noticed that when i buy my phone the bootloared statut is allowed:yes but when i update via ota to lollipop the BL come allowed (no) where are the probleme
Edit2 :My phone is Unlock Allowed:NO but i can use every sim on my phone and it's work fine!My phone is Unlock Allowed:NO but i can use every sim on my phone and it's work fine!
Click to expand...
Click to collapse
In such case you need to roll back to your previous android version. I don't think you could unlock your bootloader. But if you are telling it was 'yes' before, then you should try.
No matter your phone works with every sim or not. TA Partition contains DRM keys as well as many other things related to network, warranty, services which get erased after unlocking bootloader.
hitman-xda said:
In such case you need to roll back to your previous android version. I don't think you could unlock your bootloader. But if you are telling it was 'yes' before, then you should try.
No matter your phone works with every sim or not. TA Partition contains DRM keys as well as many other things related to network, warranty, services which get erased after unlocking bootloader.
Click to expand...
Click to collapse
Iam sad now so can i flash any stock rom i tell stock rom (iam at oronge now 5,0,2)??
znayver said:
Iam sad now so can i flash any stock rom i tell stock rom (iam at oronge now 5,0,2)??
Click to expand...
Click to collapse
Yes you can flash any stock ROM through flashtool. You just need to download appropriate firmware (.ftf)
Even you could update your phone through PC Companion. The latest version is 5.1.1 Available.
BTW why are you trying to flash stock ROM? Are you using any custom ROM already?
Regards,
hitman-xda
hitman-xda said:
Yes you can flash any stock ROM through flashtool. You just need to download appropriate firmware (.ftf)
Even you could update your phone through PC Companion. The latest version is 5.1.1 Available.
BTW why are you trying to flash stock ROM? Are you using any custom ROM already?
Regards,
hitman-xda
Click to expand...
Click to collapse
Tttnxx very muuuch mrs hitman..so no i dont use any custom rom i have oronge stock rom i dont like the logo of oronge when i turn on my xperia...tell me can i install mod ??????
znayver said:
Tttnxx very muuuch mrs hitman..so no i dont use any custom rom i have oronge stock rom i dont like the logo of oronge when i turn on my xperia...tell me can i install mod ??????
Click to expand...
Click to collapse
You mean bootscreen, right?
Just because of bootscreen are you going to change the entire ROM?
You could change bootscreen manually. Your phone just need to be rooted to do so. To root your phone use kingroot app. If your lucky enough, your phone will be rooted.
There are tons of bootscreens available. Just pick one and place it in /system/media (don't forget to backup old one) with -rw--r--r permissions and Bingo! You have changed your bootscreen.
Regards,
hitman-xda
hitman-xda said:
You mean bootscreen, right?
Just because of bootscreen are you going to change the entire ROM?
You could change bootscreen manually. Your phone just need to be rooted to do so. To root your phone use kingroot app. If your lucky enough, your phone will be rooted.
There are tons of bootscreens available. Just pick one and place it in /system/media (don't forget to backup old one) with -rw--r--r permissions and Bingo! You have changed your bootscreen.
Regards,
hitman-xda
Click to expand...
Click to collapse
tnxxxxxxx my dear tnx for your great help and give me your time
How can i do root to the same phone
How can i do root to the same phone wite same state
hitman-xda said:
no. You can't unlock your bootloader if 'unlock bootloader allowed = no'
since you cannot unlock bootloader, therefore you cannot flash custom rom on your phone.
Rooting phone do not always need bootloader to be unlocked. There will be some ways available to root your phone with lb.
Also there will be some roms available that can be flashed over lb. But they'll be based on stock and will not have more features rather than stock features.
You just need to search here on xda
i suggest you not to flash any rom on lb. You'll eventually get bootloops and maybe hard brick.
Regards,
hitman-xda
Click to expand...
Click to collapse
---------- Post added at 05:02 PM ---------- Previous post was at 04:57 PM ----------
kingroot app NOT WORK FOR ME
SALEMI ALA said:
How can i do root to the same phone wite same state
---------- Post added at 05:02 PM ---------- Previous post was at 04:57 PM ----------
kingroot app NOT WORK FOR ME
Click to expand...
Click to collapse
Try the same app several times. It usually does not succeed in first attempt. It you fail each time, try kingo root with windows software.
hitman-xda said:
Try the same app several times. It usually does not succeed in first attempt. It you fail each time, try kingo root with windows software.
Click to expand...
Click to collapse
i try soo many times with tow mithod and no hope... :crying: :crying:
SALEMI ALA said:
i try soo many times with tow mithod and no hope... :crying: :crying:
Click to expand...
Click to collapse
Well, that's strange.
Give me your system details (Android version, bootloader status, kernel version, build number etc.) I'll examine it and give you right the method.
PS: Even carrier state wheatear it's locked/unlocked
i think this img have all what you
hitman-xda said:
Well, that's strange.
Give me your system details (Android version, bootloader status, kernel version, build number etc.) I'll examine it and give you right the method.
PS: Even carrier state wheatear it's locked/unlocked
Click to expand...
Click to collapse
SALEMI ALA said:
i think this img have all what you
Click to expand...
Click to collapse
Dude, your on latest android version. There isn't any exploit available to root ver 5.1.1
You either need to wait until anyone makes an exploit for your phone or you need downgrade your phone and root it.
There is a pre-rooted firmware available for lollipop But it works only if phone has 5.0.2 .
Unfortunately your phone has 5.1.1 that means you still need to downgrade your phone and flash pre-rooted 5.1.1
Also, your bootloader can't be unlocked. So you need to flash ROM accordingly. Don't ever flash ROM that are meant for unlocked bootloader.
Regards,
hitman-xda
when someone makes an exploit for my phone and root 5.1.1 . i steel need to unlock the boot loader ?

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