Database Develop

[Q] Re-lock bootloader xperia t lt30p

Hi, I unlocked the bootloader on my xperia t lt30p one time with intention to root it and install custom roms but never did as I nearly bricked it when putting a kernel on. I managed to put what I think is a stock kernel and rom back on, but I went to update it the other day and pc companion says that it could not complete the operation because the phone has been modified. I read somewhere that having the bootloader unlocked can cause this, so I wish to re lock it. Could anyone point me in the direction of a good tutorial to do so? Cheers...
Josh

josh1quattro said:
Hi, I unlocked the bootloader on my xperia t lt30p one time with intention to root it and install custom roms but never did as I nearly bricked it when putting a kernel on. I managed to put what I think is a stock kernel and rom back on, but I went to update it the other day and pc companion says that it could not complete the operation because the phone has been modified. I read somewhere that having the bootloader unlocked can cause this, so I wish to re lock it. Could anyone point me in the direction of a good tutorial to do so? Cheers...
Josh
Click to expand...
Click to collapse
This thread has steps for relocking the bootloader - http://forum.xda-developers.com/showthread.php?t=2092227, they were using a Xperia V so you'll need to use a different FTF file for your Xperia T- http://forum.xda-developers.com/showthread.php?t=1924221

josh1quattro said:
Hi, I unlocked the bootloader on my xperia t lt30p one time with intention to root it and install custom roms but never did as I nearly bricked it when putting a kernel on. I managed to put what I think is a stock kernel and rom back on, but I went to update it the other day and pc companion says that it could not complete the operation because the phone has been modified. I read somewhere that having the bootloader unlocked can cause this, so I wish to re lock it. Could anyone point me in the direction of a good tutorial to do so? Cheers...
Josh
Click to expand...
Click to collapse
the link provided by our friend is quite good, that's where you have to head over
and about the tutorial, tha't so easy, just flash that FTF file via Flashtools
power off your phone, open flashtools, select flash logo, then FLASH MODE, then connect your phone as you are pressing down the VOLUME DOWN button, and let it do the rest
disconnect and enjoy your relocked bootloader

So I won't need to re flash the rom again? sorry. I'm a bit of a noob at phone modding. Pc's I can do. Not phones yet. Hahaha.

no, flash the relock ftf found in the dev section, and it just relocks your bootloader, your rom will stay the same

josh1quattro said:
So I won't need to re flash the rom again? sorry. I'm a bit of a noob at phone modding. Pc's I can do. Not phones yet. Hahaha.
Click to expand...
Click to collapse
RElock won't affect you rom, BUT if you unlcok AGAIN, then at the very first start up of the phone when it is the first time after RE-UNlocking, it will have a factory reset
just wanted to let you know
but for now, NO, it won't touch your firmware

Just done it. Worked. Cheers guys,

josh1quattro said:
Just done it. Worked. Cheers guys,
Click to expand...
Click to collapse
pressing Thank button is a better option, instead of saying "cheers", believe me
happy to see you made it, bro

Relocking Xperia T
BarneyJ said:
This thread has steps for relocking the bootloader - http://forum.xda-developers.com/showthread.php?t=2092227, they were using a Xperia V so you'll need to use a different FTF file for your Xperia T- http://forum.xda-developers.com/showthread.php?t=1924221
Click to expand...
Click to collapse
I want to relock ma Xperia T via EMMA Flashtool...I have downloaded the relock xperia t.ftf file...but i dont know how to drage and drop the file to Emma service list..plz help..ma device is near dead...

engrizhar said:
I want to relock ma Xperia T via EMMA Flashtool...I have downloaded the relock xperia t.ftf file...but i dont know how to drage and drop the file to Emma service list..plz help..ma device is near dead...
Click to expand...
Click to collapse
Use flashtool

Doomkernel questions

I've recently flashed this http://forum.xda-developers.com/showthread.php?t=2448613 and was just wondering can I still update via Pc companion/SEUS to new firmwares/updates without losing the kernel, root etc...like will it replace the kernel with a stock one?
I'm a noob at Flashing and search didn't really answer my question.

If you have unlocked your bootloader by the official method at unlockbootloader.sonymobile.com, then you can not use PC Companion or SEUS to update firmware.

Someguyfromhell said:
If you have unlocked your bootloader by the official method at unlockbootloader.sonymobile.com, then you can not use PC Companion or SEUS to update firmware.
Click to expand...
Click to collapse
From what you said, I understand that there is an unofficial way to unlock the bootloader and still be able to use PC Companion and SEUS to update firmware?

Just2Cause said:
From what you said, I understand that there is an unofficial way to unlock the bootloader and still be able to use PC Companion and SEUS to update firmware?
Click to expand...
Click to collapse
If your bootloader is unlocked, there is no way to use pc companion or seus to update firmware unless you relock it

Thankyou for the replies, I might try to relock my bootloader. I unlocked it through the official Sony method.

Just2Cause said:
From what you said, I understand that there is an unofficial way to unlock the bootloader and still be able to use PC Companion and SEUS to update firmware?
Click to expand...
Click to collapse
Not as far as I know. Older Xperia models had test point method, but Z1 does not have this option.
Sent from my LT18i

Someguyfromhell said:
Not as far as I know. Older Xperia models had test point method, but Z1 does not have this option.
Sent from my LT18i
Click to expand...
Click to collapse
Has someone actually ruled this out? I mostly hear that people with LB go swap their phones or just make sure they're getting a UB phone in the first place. The main complication I see is compromising the waterproof gasket...

Test point method?

xasbo said:
Has someone actually ruled this out? I mostly hear that people with LB go swap their phones or just make sure they're getting a UB phone in the first place. The main complication I see is compromising the waterproof gasket...
Click to expand...
Click to collapse
Unlocking bootloader doesn't have anything to do with waterproofness, it's something done using a computer.

Just2Cause said:
Unlocking bootloader doesn't have anything to do with waterproofness, it's something done using a computer.
Click to expand...
Click to collapse
Obviously. In order to access test points, the back cover will have to be removed. The back cover uses tape/gasketing to enforce waterproofing. My question was about whether someone has actually looked into a testpoint unlock yet for the XZ1.

[Q] How to backup TA, MAC and IMEI with unlocked BL?

Greetings to everyone
I have already unlocked BL & rooted my 4.3 xperia Z1 with CWM recovery installed... the camera and everything works fine
So, how to backup TA, MAC and IMEI with unlocked BL? I want to avoid any furthur losing possibility of them
Sorry If this a repeated question but I have searched a lot before posting this
thank you

You can't Backup your TA if you Unlocked your Bootloader. You lost your DRM keys permanently. You will not be able to re-lock you bootloader and you are not covered by your warranty. Sorry but you should read carefully before do anything.

Yeah, too late, you should have done this before the unlock....

eclyptos said:
You can't Backup your TA if you Unlocked your Bootloader. You lost your DRM keys permanently. You will not be able to re-lock you bootloader and you are not covered by your warranty. Sorry but you should read carefully before do anything.
Click to expand...
Click to collapse
oh.. I hope everything will still fine .. but I saw option in flashtool to relock BL.. it won't relock my phone ?? ... and what is the safe way to update my device firmware when 4.4 kitkat arrives to xperia z1 ??? and what are the risks now ?? what I must avoid and never do ?? any advices for me ???... sure it's better to stay one 4.3 without root rather than breaking my phone
thank you

ghostman2 said:
Yeah, too late, you should have done this before the unlock....
Click to expand...
Click to collapse
yeah I realize that .. I was on HTC before and I didn't know that the unlock BL is like that in SONY .. it's all my fault

Hani88 said:
oh.. I hope everything will still fine
Click to expand...
Click to collapse
Should be all fine but the safest way was backup TA first because if one day happen something on your phone you can't go via warranty.
Hani88 said:
.. but I saw option in flashtool to relock BL.. it won't relock my phone ??
Click to expand...
Click to collapse
You still losing your DRM keys so even if he does it's compromise, no x-reality, bionz engine and bravia.
Hani88 said:
... and what is the safe way to update my device firmware when 4.4 kitkat arrives to xperia z1 ???
Click to expand...
Click to collapse
This is not a problem, the FTFs will be upload here on XDA like for .290 and Custom Roms as well.
Hani88 said:
and what are the risks now ??
Click to expand...
Click to collapse
This is what we said already, the risk is if you brick the phone and the warranty will not cover that.
Hani88 said:
what I must avoid and never do ?? any advices for me ???... sure it's better to stay one 4.3 without root rather than breaking my phone
Click to expand...
Click to collapse
You don't have to avoid anything just read carefully everything when you try to do something. My advice is now to wait for the confirmed and safe way to root or update. In your position you already lost the safest way so I will root, update or flash custom roms to enjoy the phone but remember, it's your own risk and responsability.

Ive done the same, came from HTC.....so I will still have all tge features unless I flash say cm11 and try to go back to a Sony based rom?
Sent from my C6903 using XDA Premium 4 mobile app

Root for 14.2.A.1.136?

Hey
Can someone tell me how to root on this version or link something please
Thanks in advanced

SpawnCube said:
Hey
Can someone tell me how to root on this version or link something please
Thanks in advanced
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2632808

SpawnCube said:
Hey
Can someone tell me how to root on this version or link something please
Thanks in advanced
Click to expand...
Click to collapse
You can't root this version directly.
You have 2 options.
1) Unlock bootloader.
2) Downgrade to 4.2, root via vroot then upgrade.
More details here.

thalada said:
You can't root this version directly.
You have 2 options.
1) Unlock bootloader.
2) Downgrade to 4.2, root via vroot then upgrade.
More details here.
Click to expand...
Click to collapse
no use downgrade than root. will lose root after update to 290/136.

chunlianghere said:
no use downgrade than root. will lose root after update to 290/136.
Click to expand...
Click to collapse
You can always use nut method for upgrade but it doesn't support this version i guess.
or you can always go for a custom rom which is prerooted.

thalada said:
You can always use nut method for upgrade but it doesn't support this version i guess.
or you can always go for a custom rom which is prerooted.
Click to expand...
Click to collapse
i know there is a method will sure work.
-use flashtool flash custom kernel
-go to cwm flash a zip file (update_supersu.zip) provided by someone in xda, credit to tat person!
-finally flash stock ftf with only kernel.
-done! rooted!

@chunlianghere, @thalada, What are you doing People? From all the links just one is correct, for .290. Also NEVER give advice to Unlock Bootlader because users cannot be aware of the risk doing this like lose Permanently DRM Keys and Warranty, FOREVER. Because if you do not advice of the risk someone can Unlock the Bootloader then lose DRM keys and if so it will NEVER be relocked and warranty will be void permanently, so before give advice learn what is all about!
@SpawnCube, the .136 cannot be rooted directly but can be Rooted with the method by NUT for Locked Bootloader. If your Model is C6903 you can downgrade directly to .534 with FW provided by NUT to not lose IMEI, then Root with Bin4ry, then Update to .290 with the instructions given HERE, when you have .290 rooted you are ready to update to .136 with the same method HERE.
For different Models the downgrade have to be done differently, downgrade to .257 FW First, then to .534 FW to not lose IMEI, but you will update anyway so there is no problem even if you will lose it.
Watch the Video Tutorial How To in the first Link for .290. It will explain all.

eclyptos said:
@chunlianghere, @thalada, What are you doing People? From all the links just one is correct, for .290. Also NEVER give advice to Unlock Bootlader because users cannot be aware of the risk doing this like lose Permanently DRM Keys and Warranty, FOREVER. Because if you do not advice of the risk someone can Unlock the Bootloader then lose DRM keys and if so it will NEVER be relocked and warranty will be void permanently, so before give advice learn what is all about!
@SpawnCube, the .136 cannot be rooted directly but can be Rooted with the method by NUT for Locked Bootloader. If your Model is C6903 you can downgrade directly to .534 with FW provided by NUT to not lose IMEI, then Root with Bin4ry, then Update to .290 with the instructions given HERE, when you have .290 rooted you are ready to update to .136 with the same method HERE.
For different Models the downgrade have to be done differently, downgrade to .257 FW First, then to .534 FW to not lose IMEI, but you will update anyway so there is no problem even if you will lose it.
Watch the Video Tutorial How To in the first Link for .290. It will explain all.
Click to expand...
Click to collapse
cannot relock? flashtool can do that.
got risk or not, its all in the forum/thread. it depends on whether that person wan to search n do some homework or not.
we cannot be forever spoon feed everything rite?
anyway i tink only samsung will lose IMEI. dont tink sony phone will. all the previous sony phone tat i hav, didnt encounter any lose IMEI.
tat is y i love sony instead of samsung. samsung is too complicated.

chunlianghere said:
cannot relock? flashtool can do that.
got risk or not, its all in the forum/thread. it depends on whether that person wan to search n do some homework or not.
we cannot be forever spoon feed everything rite?
anyway i tink only samsung will lose IMEI. dont tink sony phone will. all the previous sony phone tat i hav, didnt encounter any lose IMEI.
tat is y i love sony instead of samsung. samsung is too complicated.
Click to expand...
Click to collapse
That sound like you try to be smart without know anything about it. So then you should go back to read the whole Xperia section before Post.
If you Unlock Bootloader you will lose DRM Key permanently and you warranty will be void forever. To avoid that You have to Backup TA, to Backup TA you need Root, but if you Unlock Bootloader before have root you will lose DRM. It is clear NOW?
I think only Samsung lose IMEI? Read again the whole Xperia section and Rooting Section.
If you love Samsung because is not so complicated then you are in wrong section.

eclyptos said:
That sound like you try to be smart without know anything about it. So then you should go back to read the whole Xperia section before Post.
If you Unlock Bootloader you will lose DRM Key permanently and you warranty will be void forever. To avoid that You have to Backup TA, to Backup TA you need Root, but if you Unlock Bootloader before have root you will lose DRM. It is clear NOW?
I think only Samsung lose IMEI? Read again the whole Xperia section and Rooting Section.
If you love Samsung because is not so complicated then you in wrong section.
Click to expand...
Click to collapse
i m just letting SpawnCube that there is a way to root it.
so tat thread will point out about the danger n risk of losing DRM key. got it?
err...open your eyes BIG! or u don understand english? no offence
"tat is y i love sony instead of samsung. samsung is too complicated."
Click to expand...
Click to collapse

chunlianghere said:
i m just letting SpawnCube that there is a way to root it.
Click to expand...
Click to collapse
You did not, you put him in a wrong way.
chunlianghere said:
so tat thread will point out about the danger n risk of losing DRM key. got it?
Click to expand...
Click to collapse
You got it now?
chunlianghere said:
err...open your eyes BIG! or u don understand english? no offence
Click to expand...
Click to collapse
I see, my bad, but I understand how do stuff on Z1.

eclyptos said:
You did not, you put him in a wrong way.
You got it now?
I see, my bad, but I understand how do stuff on Z1.
Click to expand...
Click to collapse
actually i dont care much about DRM key anyway. send for warranty only if hardware is spoilt. the most ask them do last warranty repair.
if DRM key n warranty is so much important, than sony would hav "Bootloader unlocked: NO" for all phone in the world
actually sony doesnt do the warranty n repair. it depends on the company in tat particular country. like example for doomlord, his one is only flap damage, but can get 1 to 1 exchange. tat shows tat how good the company is in tat country.
unlocking bootloader n rooting is pretty much standard.
technology n software is improving at a fast rate. the most i get a latest newer phone.

chunlianghere said:
actually i dont care much about DRM key anyway. send for warranty only if hardware is spoilt. the most ask them do last warranty repair.
if DRM key n warranty is so much important, than sony would hav "Bootloader unlocked: NO" for all phone in the world
actually sony doesnt do the warranty n repair. it depends on the company in tat particular country. like example for doomlord, his one is only flap damage, but can get 1 to 1 exchange. tat shows tat how good the company is in tat country.
unlocking bootloader n rooting is pretty much standard.
technology n software is improving at a fast rate. the most i get a latest newer phone.
Click to expand...
Click to collapse
Ok, here you are right but you have to understand that, what is not important you, it may be important for others, especially when we talking about Warranty.
We are here to give advice, then we should do this in the right way and inform users of any risk.

eclyptos said:
Ok, here you are right but you have to understand that, what is not important you, it may be important for others, especially when we talking about Warranty.
We are here to give advice, then we should do this in the right way and inform users of any risk.
Click to expand...
Click to collapse
hey eclyptos, hope you still around this thread.
i quite agree with you, since i am one of those who care about warranty.
I hope it's fine to make a question about rooting here 'coz i can't make post on there. anw, i've been trying to follow the steps on here, but i find some trouble.
My status is :
Device : Xperia Z1 C6903
Build number : 14.2.1.136
what I did was :
Installing Flashtool 9.13 on PC
Download C6903_14.2.A.0.290.flashable.zip and put it on my first page of SDcard on device
Download C6903_14.2.A.0.290.Stripped.tft inside flashtool/firmwares folder on PC
Install TWRP on my device (can’t be used, root needed), can’t create a backup *step 5 failed*
XZDualRecovery Question : I’ve download it, connect my device to PC then enable USB debugging mode. Execute the install.bat from XZDualRecovery and choose number 2. Does anything really happened? *step 6 failed?*
Then I install the flashmode and fastboot drivers from flashtool folders. Tried to flashmode C6903_14.2.A.0.290 Brand Generic NCB but it stopped halfway.

aeroclubber said:
hey eclyptos, hope you still around this thread.
i quite agree with you, since i am one of those who care about warranty.
I hope it's fine to make a question about rooting here 'coz i can't make post on there. anw, i've been trying to follow the steps on here, but i find some trouble.
My status is :
Device : Xperia Z1 C6903
Build number : 14.2.1.136
what I did was :
Installing Flashtool 9.13 on PC
Download C6903_14.2.A.0.290.flashable.zip and put it on my first page of SDcard on device
Download C6903_14.2.A.0.290.Stripped.tft inside flashtool/firmwares folder on PC
Install TWRP on my device (can’t be used, root needed), can’t create a backup *step 5 failed*
XZDualRecovery Question : I’ve download it, connect my device to PC then enable USB debugging mode. Execute the install.bat from XZDualRecovery and choose number 2. Does anything really happened? *step 6 failed?*
Then I install the flashmode and fastboot drivers from flashtool folders. Tried to flashmode C6903_14.2.A.0.290 Brand Generic NCB but it stopped halfway.
Click to expand...
Click to collapse
The Video Tutorial on that thread explain very well what you should do, did you watched it?
You have to downgrade via Flashtool to .534 FW provided by NUT to not lose IMEI, Root the Firmware with Bin4ry, when you are rooted instal Dual Recovery, then follow the instruction to update directly to .136 from HERE.
All the files you find in .290 thread, Post #3, Watch the Video, then follow .136 thread.

[Q] Relocking the bootloader

I unlocked my bootloader using the flash tool,didn't root or do anything that requires an unlocked bootloader.
And now i want to relock it,because my phone got water damaged and before i go to the Sony service center.
It's still fully functional(i can use it to do normal everyday things)but a small part of the digitizer is not working anymore,aswell as installing the 4.4 update.
Any help?
And will the warranty cover up non-user caused water damage?all ports were closed as well as the battery door.

Shakshireno said:
I unlocked my bootloader using the flash tool,didn't root or do anything that requires an unlocked bootloader.
And now i want to relock it,because my phone got water damaged and before i go to the Sony service center.
It's still fully functional(i can use it to do normal everyday things)but a small part of the digitizer is not working anymore,aswell as installing the 4.4 update.
Any help?
And will the warranty cover up non-user caused water damage?all ports were closed as well as the battery door.
Click to expand...
Click to collapse
If you did not back up your TA partition before unlocking the phone I think you will not be able to relock it. No warranty in that situation.

drZeT said:
If you did not back up your TA partition before unlocking the phone I think you will not be able to relock it. No warranty in that situation.
Click to expand...
Click to collapse
I just checked the Sony developer website,and it says that 2013 and newer devices,when unlocked,it well wipe all of your data,aswell as DRM stuff(track ID still works(and my data was not deleted)).
Are you supposed to receive Sony application updates when you've unlocked your phone?

Shakshireno said:
I just checked the Sony developer website,and it says that 2013 and newer devices,when unlocked,it well wipe all of your data,aswell as DRM stuff(track ID still works(and my data was not deleted)).
Are you supposed to receive Sony application updates when you've unlocked your phone?
Click to expand...
Click to collapse
It does not delete data on external SDcard, only internal memory. Also unlocking bootloader will disable Bravia engine, u will still be able to tick it in settings but it won't work. Not sure about updates.

Shakshireno said:
I just checked the Sony developer website,and it says that 2013 and newer devices,when unlocked,it well wipe all of your data,aswell as DRM stuff(track ID still works(and my data was not deleted)).
Are you supposed to receive Sony application updates when you've unlocked your phone?
Click to expand...
Click to collapse
in my case, nothing was deleted. no you won't get OTA updates when unlocked

anagramgenius said:
in my case, nothing was deleted. no you won't get OTA updates when unlocked
Click to expand...
Click to collapse
I already knew that,i meant is there a way to install the official updates when unlocked.
I saw this thing called Emma,still waiting for my confirmation email though.

Shakshireno said:
I already knew that,i meant is there a way to install the official updates when unlocked.
I saw this thing called Emma,still waiting for my confirmation email though.
Click to expand...
Click to collapse
search the forum for required FTF and flash it using flash tool.

anagramgenius said:
search the forum for required FTF and flash it using flash tool.
Click to expand...
Click to collapse
Can you link it to me please?
i only found the files for the Z1,Z1 compact,Z and Z Ultra

Can you relock the bootloader using the tool provided by Sony?

Sorry for hijacking this thread. I have unlocked my ZR by flashtool also took TA partition backup before. Now i want to relock it as i need be2 and breathing light . My question is would i still be able to unlock and relock any number of times in the future?