Database Develop

[Q] how to relock bootloader for c6602 xperia z

how to relock bootloader for c6602 xperia z

khaledsiam said:
how to relock bootloader for c6602 xperia z
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Is it really this difficult to use the search function or google?
http://forum.xda-developers.com/showthread.php?t=2191907

R!n said:
Is it really this difficult to use the search function or google?
http://forum.xda-developers.com/showthread.php?t=2191907
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i try this but still same not relocked

schaggo said:
Relocking is not yet fully and flawlessly possible.
The current method for relocking worked for some, others posted myriads about how it screwed all up. As the level of technical proficiency of those users is unknown and not really determinable, at this time is probably safe to say, it's a) up to you to try and b) may work with a certain chance or c) it may not.
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There is still a possibility that it does not work with your device (right now).
If you access the service menu and look up the "Bootloader unlocked" status it should either read "yes" (unsuccessful) or "unknown" (successful) if you have used the tool.
Also note that DRM keys are not coming back, so BE2 will still be missing after a relock.

R!n said:
There is still a possibility that it does not work with your device (right now).
If you access the service menu and look up the "Bootloader unlocked" status it should either read "yes" (unsuccessful) or "unknown" (successful) if you have used the tool.
Also note that DRM keys are not coming back, so BE2 will still be missing after a relock.
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With Flashtool beta4 you can unlock and lock it again.
Sent from my C6602 using xda premium

gm007 said:
With Flashtool beta4 you can unlock and lock it again.
Sent from my C6602 using xda premium
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its stuck on logo after i unlocked it can u tell me please how i will do it by flasdh tool step bystep caz i failed

khaledsiam said:
its stuck on logo after i unlocked it can u tell me please how i will do it by flasdh tool step bystep caz i failed
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After unlocking the bootloader,first boot will take about 5 minutes cause everything being wiped.
Sent from my C6602 using xda premium

[Q] Help needed with lockin amd unlocking bootloader.

I had a few questions about locking and unlocking bootloader.
1. After unlocking we lose the DRM keys. Which apps will no longer work?a list would be useful.
2. If i relock my bootloader again will the DRM keys be restored and ca i use those apps again?
Thank you!
Sent from my C6602 using xda app-developers app

Shadow Ryder said:
I had a few questions about locking and unlocking bootloader.
1. After unlocking we lose the DRM keys. Which apps will no longer work?a list would be useful.
2. If i relock my bootloader again will the DRM keys be restored and ca i use those apps again?
Thank you!
Sent from my C6602 using xda app-developers app
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1. Check this thread
2. They won't be restored. There's a way you can make a backup of your TA partition here.

Xperia Z DRM keys back?

So I never wanted to unlock my bootloader, because of Gracenote especially, idc about BE2 , but I installed a custom ROM the other day, existens i1 Honami, but I got stuck in a bootloop.
I had a nandroid backup but it was done from CWM, and the one was TWRP, so I was kind of screwed. I installed other zips to get cwm, but CWM wouldnt launch, I would get a black screeen, Even dual recoveries, TWRP would work, but not CWM.
Then I was forced to unlock bootloader to use fastboot to flash the boot img, after which I managed to restore my nandroid.
BUT i totally forgot that I will lose all my data, and DRM keys forever :/ *BANGS HEAD*
But apparently its working right now after the backup, is it normal? Bootloader is relocked btw
And is there any easier way to solve the situation right there?

Bump, come on someone answer, I thought this forum was alive

No way to get DRM keys back.

I remember when I was unlocking my bootloader I backed up my DRM keys with the Backup TA tool......Could you use my backup file??!
Sent from my C6606 using xda premium

Please do not use other's TA backup file!!!!
You will brick your phone as this has been confirmed.
You can only use back your own TA backup. If you did not do it before you unlocked, your DRM key is losts no matter whether you relock your bootloader subsequently.

pitbull292006 said:
I remember when I was unlocking my bootloader I backed up my DRM keys with the Backup TA tool......Could you use my backup file??!
Sent from my C6606 using xda premium
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Only if he doesn't ever want to use his phone again.
Technically there shouldn't be any problem transferring DRM keys between devices, but we must first figure out how they are stored in the TA partition, since copying that entire partition changes some essential data rendering the device unbootable.

newtbie said:
Please do not use other's TA backup file!!!!
You will brick your phone as this has been confirmed.
You can only use back your own TA backup. If you did not do it before you unlocked, your DRM key is losts no matter whether you relock your bootloader subsequently.
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Calm down there weirdo......I simply asked a simple question, which only required a simple answer
Sent from my C6606 using xda premium

pitbull292006 said:
Calm down there weirdo......I simply asked a simple question, which only required a simple answer
Sent from my C6606 using xda premium
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He was right to issue a warning. Flashing somebody else's TA partition will cause an unrecoverable hard brick.
Sent from my C6603 using Tapatalk 2

If I didn't have my DRM keys, I wouldn't be able to use Gracenote, is that right?

TrackID? You should still be able to use it without issue. It has become a public application in Google Play now, not limiting to Sony phones.
I'm wild guessing that the retrieval of music info from the WALKMAN app may fail.
You can try out for yourself since you unlocked your bootloader.
---------- Post added at 01:23 AM ---------- Previous post was at 01:21 AM ----------
kingvortex said:
He was right to issue a warning. Flashing somebody else's TA partition will cause an unrecoverable hard brick.
Sent from my C6603 using Tapatalk 2
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The problem with some users over here is they gave wrong advice and end up causing someone's misery. Afterall we are helping one another to resolve our issues or to prevent things from going haywire, don't you think so?

I've lost DRM keys and Camera don't working right now. Any way for fix camera?

kartal172 said:
I've lost DRM keys and Camera don't working right now. Any way for fix camera?
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dont know. I lost mine to.
but i have been trying last 10 days to extract download_package.bin which is ota update for my phone if it contain cert.rsa for my Hardware Unique Key Then I m quiet sure that creating meta-inf file using that key will get us back DRM keys.
Waiting Any PRO or thread to guide us.

As far as i know it's impossible if you didn't made ta backup before unlocking your bootloader.

O have a ta backup and im on existenz and doomkernel is it possible to restore my ta now? And still have the benifits of a unlocked bootloader?
Sent from my C6603 using xda app-developers app

demon2112 said:
O have a ta backup and im on existenz and doomkernel is it possible to restore my ta now? And still have the benifits of a unlocked bootloader?
Sent from my C6603 using xda app-developers app
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No. If you restore your TA backup while running a custom kernel, it will relock your bootloader and soft brick your phone.
Sent from my C6603 using Tapatalk

kingvortex said:
No. If you restore your TA backup while running a custom kernel, it will relock your bootloader and soft brick your phone.
Sent from my C6603 using Tapatalk
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And.on a stock kernel with custom rom then?
Sent from my C6603 using xda app-developers app

kingvortex said:
No. If you restore your TA backup while running a custom kernel, it will relock your bootloader and soft brick your phone.
Sent from my C6603 using Tapatalk
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demon2112 said:
And.on a stock kernel with custom rom then?
Sent from my C6603 using xda app-developers app
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It would interesst me too

gripfly said:
It would interesst me too
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If you relock your bootloader by restoring a TA backup while on a stock unmodified kernel then nothing bad should happen.
This limits you to using only stock based roms, however as CM/AOSP/AOKP based roms require a custom kernel and therefore an unlocked bootloader.
Sent from my C6603 using Tapatalk

kingvortex said:
If you relock your bootloader by restoring a TA backup while on a stock unmodified kernel then nothing bad should happen.
This limits you to using only stock based roms, however as CM/AOSP/AOKP based roms require a custom kernel and therefore an unlocked bootloader.
Sent from my C6603 using Tapatalk
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So for the hole ''flash history'' the Kernel is always that important thing we have to give a look on it? The other part of a ROM are more or less not important?
So when I have a unlocked device with stock kernel and stock based custom ROM I can restore the TA without any problems?

Is there a way to check the drm keys, if they are realy there?and a way to check if be2 works? (build prop line) or something
Sent from my C6603 using xda app-developers app

Warranty Back

I have unlocked Bootloader but i dont have TA backup and No DRM Keys backup.. I have unlocked my Bootloader by giving SONY my IMEI NO. and putting the code in fastboot.. So i think SONY knows my warranty is void.. Is there anyway i can get my phone back to Original state with locked Bootloader and everything intact..
And most important Restoring of Warranty..
Sent from my 6902 using XDA Premium 4 mobile app
Unlocked Bootloader with iHacker ROM, CWM Recovery and Volume Boost XZ1

I do not think you can.

Hummmm thanks for the reply
Sent from my 6902 using XDA Premium 4 mobile app
Unlocked Bootloader with iHacker ROM, CWM Recovery and Volume Boost XZ1

Does restoring my TA also return my drm keys
Sent from my C6902 using XDA Premium 4 mobile app

abbychauhan said:
I have unlocked Bootloader but i dont have TA backup and No DRM Keys backup.. I have unlocked my Bootloader by giving SONY my IMEI NO. and putting the code in fastboot.. So i think SONY knows my warranty is void.. Is there anyway i can get my phone back to Original state with locked Bootloader and everything intact..
And most important Restoring of Warranty..
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The main problem in your case is that you don't have your TA and DRM keys to restore to original state. The IMEI given to Sony is irrelevant and not a issue because you can give the IMAI but never unlocked the bootloader, like I did, or some one give your IMEI to Sony, so thay can't void you warranty just because of the IMEI. Your problem is related to TA and DRM keys only.
RISHI RAJ said:
Does restoring my TA also return my drm keys
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Yes, when you did a Backup of your TA the DRM keys was backed up as well so when you will restore TA they will be back too.

Whatsoever.. My ph is already 4 months old so left with 8 months.. I ll make sure nothing happens to my Mobile.. Because after 12 months warranty is of no use
Sent from my 6902 using XDA Premium 4 mobile app
Unlocked Bootloader with iHacker ROM, CWM Recovery and Volume Boost XZ1

[Q] Mobile Bravia Engine 2 on unlocked bootloader

Hello!
I've heard somewhere that if I unlock my bootloader that Mobile Bravia Engine won't work, is that true?
Thanks in advance

MARKOZD15 said:
Hello!
I've heard somewhere that if I unlock my bootloader that Mobile Bravia Engine won't work, is that true?
Thanks in advance
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Apparently yes it is

You can preserve your drm key before and restore if ever you return to stock.
Plus if you look in the development section, I believe there is a guide to getting it working on unlocked bootloaders.
Xperia Z

If you havent unlocked your bl yet, you can backup ta partition before proceeding to unlock. After you unlocked you can simply restore ta parititon.
Be aware, for backup you need to be rooted your phone. And rooting not possible without unlocking the bl on the newly versions .569 and .101 (yet)

mzyil said:
If you havent unlocked your bl yet, you can backup ta partition before proceeding to unlock. After you unlocked you can simply restore ta parititon.
Be aware, for backup you need to be rooted your phone. And rooting not possible without unlocking the bl on the newly versions .569 and .101 (yet)
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I have already unlocked my bootloader, can I relock it and do that?
Thanks to everyone

MARKOZD15 said:
I have already unlocked my bootloader, can I relock it and do that?
Thanks to everyone
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If you have unlocked bl nd did not backup ta then there is no chance you can get back drm keys bt there is a way to install bravia engine search in the forum.
Sent from my C6602 using XDA Premium 4 mobile app

vikash1994b said:
If you have unlocked bl nd did not backup ta then there is no chance you can get back drm keys bt there is a way to install bravia engine search in the forum.
Sent from my C6602 using XDA Premium 4 mobile app
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There's no way to get back my drm keys??
So if my phone broke, I can't relock my booloader and send it to RMA?

MARKOZD15 said:
There's no way to get back my drm keys??
So if my phone broke, I can't relock my booloader and send it to RMA?
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You cant get your drm keya back but you can still relock your bootloader by flashtool
Sent from my C6602 using XDA Premium 4 mobile app

Just one more question..
If I relock my bootloader, without restoring TA partition (drm keys), will Mobile Bravia Engine 2 still work?

MARKOZD15 said:
Just one more question..
If I relock my bootloader, without restoring TA partition (drm keys), will Mobile Bravia Engine 2 still work?
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No. No DRM keys means no BE2.
Sent from my C6603 using Tapatalk

Aaah.. I'm so pissed.. I didn't knew anything about TA partition and drm keys, now I know that I'm gonna read better next time
Thanks to everyone for help and sorry for bad english, I'm from Croatia
Cheers

Look here
http://forum.xda-developers.com/showthread.php?t=2610923
Xperia Z
Although not your original drm keys, the author claims to get Bravia engine 2 working again..

boyob32 said:
Look here
http://forum.xda-developers.com/showthread.php?t=2610923
Xperia Z
Although not your original drm keys, the author claims to get Bravia engine 2 working again..
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Worked for me, thanks