bravia engine - Xperia SP Q&A, Help & Troubleshooting

How can we unlock the bootloader to fix BRAVIA Engine؟

BE 2
moharahi said:
How can we unlock the bootloader to fix BRAVIA Engine؟
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What you want actually, it Doesn't mean anything "can we unlock the boot loader to fix BE" .
Unlocking the boot loader will erase your DRM keys in TA partition so you will loose your BE 2 for album forever unless you back up your TA partition before unlocking the boot loader.

Janith Olagama said:
What you want actually, it Doesn't mean anything "can we unlock the boot loader to fix BE" .
Unlocking the boot loader will erase your DRM keys in TA partition so you will loose your BE 2 for album forever unless you back up your TA partition before unlocking the boot loader.
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Correct. There is a tutorial to backup these need to search give me a sec.
Edit: Read this: http://forum.xda-developers.com/showthread.php?t=2292598

And I found a way to keep the BE2 working after the bootloader unlock, although its just a temporary fix and NO REPLACEMENT for a proper trim area backup, as DRM keys are not replaceable.

cachanilla86 said:
And I found a way to keep the BE2 working after the bootloader unlock, although its just a temporary fix and NO REPLACEMENT for a proper trim area backup, as DRM keys are not replaceable.
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I've never done it. On my galaxy S plus it was just changing recovery and happy flashing xD

Related

Unlocking the bootloader, TA backup and the warranty

Hi,
i want to unlock my bootloader, so i made a backup with Devshafts TA Backup v9.10. The backup is a 112kb big zip file and 2mb big, when i uncompress it, i made a dry run to test it, everything seems ok.
To unlock my bootloader i must send my IMEI nr. to Sony.
My Question is, do they notice that i unlocked my XSP, even after relocking it with the TA Backup, by my IMEI nr that they have?
That would mean my warranty is voided even if i relock it?
Or am i wrong at some point?
Thank you for your help!
Well you lost your warranty if you Unlock your bootloader but I've never heard or read somewere that Sony (or the repair places) are using some kind of Database to check which IMEI has been used to get an Unlock Code.
If you relock the bootloader and restore the TA partition there is no evidence of any unlock.
mrjraider said:
Well you lost your warranty if you Unlock your bootloader but I've never heard or read somewere that Sony (or the repair places) are using some kind of Database to check which IMEI has been used to get an Unlock Code.
If you relock the bootloader and restore the TA partition there is no evidence of any unlock.
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That concerns me a bit.I have locked and unlocked my bootloader several times but i dont remember backung up my TA partition...... is there any way to restore it to factory status again ?
jackaros said:
That concerns me a bit.I have locked and unlocked my bootloader several times but i dont remember backung up my TA partition...... is there any way to restore it to factory status again ?
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No Backup of the TA partition?
Well thats not smart. Why is no one reading the tutorials?
First lines of the tutorial from Doomlord:
this is the official way to unlock bootloader
if you want to keep ur DRM keys, first root device and then check this out
Warning!
This procedure will wipe the /data partition of your phone, so you will loose all ur stored data, settings. INTERNAL SDCARD will BE WIPED!!!
For Xperia™ devices released 2013 or later (for example Xperia™ Z and Xperia™ ZL), the SD card of your device will be formatted and you will lose all content (for example photos, music, videos) when you unlock the boot loader.
DRM keys WILL be lost forever
Originally Posted by schaggo View Post
I'd add what losing DRM keys means, e.g. no more Music ID/Gracenote within the Walkman app plus probably most importantly, as asked all the time and all over the place in the T/mint forums: loss of Bravia Engine.
older Xperia devices sometimes got issues after unlock of bootloader (BRICK after FOTA update) - you have been warned
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mrjraider said:
No Backup of the TA partition?
Well thats not smart. Why is no one reading the tutorials?
First lines of the tutorial from Doomlord:
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I know that was stupid of me .About a week after unlocking my BL i saw this post and felt stupid so there is no way to get my original TA partition?
jackaros said:
I know that was stupid of me .About a week after unlocking my BL i saw this post and felt stupid so there is no way to get my original TA partition?
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Absolutely ... NO. Your device will be hard-bricked if you try to restore TA backup took from another one.
silveraero said:
Absolutely ... NO. Your device will be hard-bricked if you try to restore TA backup took from another one.
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That would be a moronic thing to do ... if its not your of for your device you shall not flash it
jackaros said:
That would be a moronic thing to do ... if its not your of for your device you shall not flash it
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Ya, so you know that if you lost the TA partition, you can't get that back.
silveraero said:
Ya, so you know that if you lost the TA partition, you can't get that back.
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Well ok if its gone its gone ill watch from now on thank you

Unlock Bootloader

Anyone please inform me the effects of unlocking bootloader. I heard that the camera doesn't functions properly after unlocking bootloader. Can anyone inform me more details about its effects.
youcan do a backup of your TA partition so in this way you will be able to do a complete restore.After unlocking the bootloader the DRM keys will loss.This affects the camera low light performance and the x-reality will stop working.it's a way to get those features work with unlocked bootloader.there it's a tutorial in sony cross development .
Sent from my Panasonic printer . Buy me a beer cause i'm alcoholic and i need more and more https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=HN6YQLDZT76EE
I heard that if I restore TA partition then it will relock bootloader. Is it true? Moreover restoring the TA partition can't give the same picture quality as it was before unlocking bootloader. thanks in advance @Anonymuszymus
imranreza said:
I heard that if I restore TA partition then it will relock bootloader. Is it true? Moreover restoring the TA partition can't give the same picture quality as it was before unlocking bootloader. thanks in advance @Anonymuszymus
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Restoring the TA partition will restore you to stock ,that's including the bootloader relocking of course .if you do this way the camera will have the same performance as before you unlocked your phone.
But remember if you are not doing the TA partiton backup you will lose drm keys forever!
May I ask..
Anonymuszymus said:
Restoring the TA partition will restore you to stock ,that's including the bootloader relocking of course .if you do this way the camera will have the same performance as before you unlocked your phone.
But remember if you are not doing the TA partiton backup you will lose drm keys forever!
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If I already unlocked my bootloader and my camera lose its proper fucntionality ( auto focus ).. Relocking the bootloader will makes the camera working again ? I dont worry about the DRM or x reality.. just the camera..
Xillreall Viz said:
If I already unlocked my bootloader and my camera lose its proper fucntionality ( auto focus ).. Relocking the bootloader will makes the camera working again ? I dont worry about the DRM or x reality.. just the camera..
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you cant lose your autofocus. what are you talkin about?
Sent from my Panasonic printer . Buy me a beer cause i'm alcoholic and i need more and more https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=HN6YQLDZT76EE
To learn!

[Q] Will DRM functions work on unlocked bootloader with restored TA partiton ?

I have TA backup and locked bootloader.
If I unlock and thereby delete the TA partition, can I then restore the TA partition and still have working DRM functions while keeping the unlocked bootloader ?
No, if you restore TA partition, the bootlloader gets locked again!
Sadly like ulysse34 said
ulysse34 said:
No, if you restore TA partition, the bootlloader gets locked again!
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There is no way of keeping an unlocked bootloader with DRM keys active
I unlocked the bootloader, is there any way to restore drm Keys?
chonazo2003 said:
I unlocked the bootloader, is there any way to restore drm Keys?
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You can Re-Lock your device first (just to be safe)
If you used FlashTool to unlock, simply click the unlock bootloader option and make sure the IMEI and unlock code are the same and click Re-Lock
If you did it the Sony way, you should be able to use flash tool
To get back your DRM keys simply go into the TA-Backup program http://forum.xda-developers.com/showthread.php?t=2292598 (script thing) and click on 'Restore'
If you did not make a backup of your TA keys... I am sorry... but you have no way of getting them back
FlipFlopHHJ said:
I have TA backup and locked bootloader.
If I unlock and thereby delete the TA partition, can I then restore the TA partition and still have working DRM functions while keeping the unlocked bootloader ?
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Good News, you can have an unlocked bootloader with DRM functions http://forum.xda-developers.com/crossdevice-dev/sony/xperia-z1-z2-z3-series-devices-drm-t2930672
This thread should help you out, you can have an unlocked bootloader with recovery / root and keep the low light etc functions

Intact DRM Keys?

Hey all,
I just bought a used Z3+ and was wondering if someone could look at the following screenshot and tell me if my DRM keys are 100% intact and my bootloader has never been unlocked. I'm having a hard time figuring it out because after the first three, all other screenshots I've found have more [Key Ok] [Active] things than mine does. but, they are also for other phones. I'm used to phones without DRM, so I want to make sure I've got everything as intended. Can anyone compare to their Z3+ who may have never unlocked it and see what they think?
Thanks for any help you can provide!
i am 100% sure your DRM key is working
Right now z3+ don't has ROOT without unlock Boot loader
That mean it can't backup TA partition and can't restore DRM key
So this phone NEVER unlock Boot loader.
tommy1177 said:
i am 100% sure your DRM key is working
Right now z3+ don't has ROOT without unlock Boot loader
That mean it can't backup TA partition and can't restore DRM key
So this phone NEVER unlock Boot loader.
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Got unlocked bootloader without possible root (5.0.2 28.0.A.8.266 firmware E6533 (z3+ Dual)). Used flashtool before unlock and saved S1 Dump in Advanced menu. Is it possible to get DRM keys from S1 Dump and restore bootloader lock?
Or my DRM keys now lost... ?

TA Partition [Warning] Uploaded for devs to make this flashable on other c5502 device

This is a copy of my TA partition for Sony Xperia ZR C5502.
Posted if anyone needed.
[WARNING] This needs modding, directly flashing would result in bricking your device.
http://mega.nz/#!GJ80RRja
Decryption Key - !ANh2Zck-2pLyt-GgLDmzWOBk6SK0hmbCMo8wv3ZuUyg
what ta partition does
TA partition is the drm keys which activate bravia engine, clear audio, etc.
If you bootloader unlock your device these keys are lost, hence I posted it for those who unlock bootloader before backing up their TA partition.
Mashun99 said:
TA partition is the drm keys which activate bravia engine, clear audio, etc.
If you bootloader unlock your device these keys are lost, hence I posted it for those who unlock bootloader before backing up their TA partition.
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From what I know, using someone else's TA partition would hard brick your phone. Maybe we can modify it in some way, but using it as it is might be dangerous. So it would be good if you post a warning regarding this in OP.
enfilade said:
From what I know, using someone else's TA partition would hard brick your phone. Maybe we can modify it in some way, but using it as it is might be dangerous. So it would be good if you post a warning regarding this in OP.
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Thanks for the tip I will.
Mashun99 said:
TA partition is the drm keys which activate bravia engine, clear audio, etc.
If you bootloader unlock your device these keys are lost, hence I posted it for those who unlock bootloader before backing up their TA partition.
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I'm using this methode http://forum.xda-developers.com/crossdevice-dev/sony/xperia-z1-z2-z3-series-devices-drm-t2930672
and work fine in my device zr,,
jabr1g said:
i'm using this methode http://forum.xda-developers.com/crossdevice-dev/sony/xperia-z1-z2-z3-series-devices-drm-t2930672
and work fine in my device zr,,
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it did work for me thanks a lot m8

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