[Q] root on .290 4.3 to back up TA - Xperia Z1 Q&A, Help & Troubleshooting

Is there anyway to root 4.3 enough without downgrading to back up my TA partition before I unlock the bootloader?
C6903 in case that makes a difference.
Cheers,
Lunar.
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lunarjetman1 said:
Is there anyway to root 4.3 enough without downgrading to back up my TA partition before I unlock the bootloader?
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No, at the moment we can't root directly our 4.3. The only way to get a Full Root is with NUT method and you don't have to unlock your bootlader. If you want to unlock you bootlader you must downgrade, root with Vroot or 360, backup TA and then unlock it.

Related

efs folder

Hi all,
Just trying to find out where the efs folder is on xperia z c6602. I used root explorer but do not see it. I just want to make a back up of it. Thanks
This is a folder created by the rooting method. At the end it is deleted automatically. You don't need it.
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Dreiundachzig said:
This is a folder created by the rooting method. At the end it is deleted automatically. You don't need it.
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So I don't have to worry about losing my imei number flashing roms?
That info is contained in the TA partition. For a backup go here http://forum.xda-developers.com/showthread.php?p=41763438
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shoey63 said:
That info is contained in the TA partition. For a backup go here http://forum.xda-developers.com/showthread.php?p=41763438
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So just to be clear, I already did a back up of my ta partition so my era folder/imei number is saved? If any problems,just do a restore of my ta partition?
Yes your vital information is now safe. If you performed TA back up before unlocking bootloader your DRM keys (needed for Bravia engine) are also backed up. So you can now unlock bootloader and flash ROMs, safe in the knowledge that you can go back to stock and restore TA (which will also relock bootloader), so it will be as it was originally.
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shoey63 said:
Yes your vital information is now safe. If you performed TA back up before unlocking bootloader your DRM keys (needed for Bravia engine) are also backed up. So you can now unlock bootloader and flash ROMs, safe in the knowledge that you can go back to stock and restore TA (which will also relock bootloader), so it will be as it was originally.
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Thanks. I just wanted to be sure cuz I flashed a Rom on my gsm nexus s and lost my imei number. Don't want that problem again.

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??!
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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??!
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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
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pitbull292006 said:
Calm down there weirdo......I simply asked a simple question, which only required a simple answer
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He was right to issue a warning. Flashing somebody else's TA partition will cause an unrecoverable hard brick.
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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.
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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?
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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?
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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.
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kingvortex said:
No. If you restore your TA backup while running a custom kernel, it will relock your bootloader and soft brick your phone.
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And.on a stock kernel with custom rom then?
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kingvortex said:
No. If you restore your TA backup while running a custom kernel, it will relock your bootloader and soft brick your phone.
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demon2112 said:
And.on a stock kernel with custom rom then?
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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.
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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.
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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
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[Q] Relocking Bootloader on Stock Rom with TA Restore

Hi guys
I'm pretty new to the XZ and just wanted to clarify something before I go ahead and flash a ROM.
I have backed up my TA Partition using TA-Backup Tool and have rooted my device.
I am about to install Recovery and Unlock the bootloader, all pretty straight forward from what I've read so far :laugh:
My only question so far is, if / when I want to relock the bootloader can I simply do this using the "restore" option within TA-Backup Tool (providing I am on a Stock ROM), or do I need to Relock using Flashtool and then restore the TA partition?
Thanks
G
Just use ta backup to relock that will flash the ta partition you have backed up to a unlocked status with drm keys
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Maddhouse said:
Just use ta backup to relock that will flash the ta partition you have backed up to a unlocked status with drm keys
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Brilliant!! I'm assuming I can still do this even if the stock ROM has a Recovery such as CWM on it?
Yes but you need to remember what state you backed your phone's ta up with otherwise m5 key won't match
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xperia z
Maddhouse said:
Yes but you need to remember what state you backed your phone's ta up with otherwise m5 key won't match
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hello what is a m5 key also im wondering how to get back to stock as i have unlocked bootloader on cyanogenmod 11 but i do wish to go back to stock only if the bravia engine and all features work. i have backed up my drm keys just need to figure out how do i restore and what process cant find anything on it
thanks

Unlock bootloader 4.3 290

Hey guys is it safe to unlock the bootloader running 4.3 build #290
I dont quite understand the TA backup
Its my first time to own a non nexus device so im a little scared to unlock my bootloader with other things to do
Anyhelp will be much appreciated! Thank you!
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You need to backup your ta partition for warranty reason and some xperia features to work.
First root your device then backup your ta-partition and then you can safely unlock your bootloader.
To root your device Out most likely have to downgrade your firmware, then root, then backup and then you can go ahead and unlock your bootloader with the latest version of flashtool
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whisper13 said:
Hey guys is it safe to unlock the bootloader running 4.3 build #290
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Yes.
whisper13 said:
I dont quite understand the TA backup
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If you don't backup TA and DRM keys and you Unlock Bootlader you will never Relock your bootlader again, you will lost warranty forever and features like X-Reality, Bionz Processing and Bravia Engine.
whisper13 said:
Its my first time to own a non nexus device so im a little scared to unlock my bootloader with other things to do
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Don't be, I remind you that Unlock Bootlader is necessary if you want to flash Custom Roms with Custom Kernels Only, if you will not do that, you easily can Root, Install Recovery and Custom Roms on Locked Bootlader.
Hi guys thanks for the quick response imma try the thing without unlocking thw bootloader and installing dual recovery
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[Q] I have some question about backup TA on Z1 locked bootloader 4.3

Hello to everyone on Xda! I'm a C6903 user with 4.3 on 14.2.A.1.136,
I have a problem, i want to backup TA before Unlock bootloader, but for backup i need root, there is a possible way to backup without rooting and after unlocking bootloader?
I need this for a trusted unlock! Thank's to all!!
You can't Backup TA without Root and you can't Backup TA after unlock bootloader because after Unlock you will lost your DRM Keys forever with warranty.
You can Root without Unlock Bootloader so there is no problem at all. Use NUT method.
eclyptos said:
You can't Backup TA without Root and you can't Backup TA after unlock bootloader because after Unlock you will lost your DRM Keys forever with warranty.
You can Root without Unlock Bootloader so there is no problem at all. Use NUT method.
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Thank you for the answer, sorry but i'm a n00b with xperia world, i have bought Z1 5 days ago and i don't want to lose warrantly!
What is NUT method? The recovery?
I have 4.3 updated to 14.2.A.1.136 and i don't have see rooting method without unlock bootloader
Sorry for the bad English..
Wolter91 said:
What is NUT method? The recovery?.
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This is the NUT method, you have to downgrade with Flashtool to .534 provided by NUT to not lose IMEI, Root with Bin4ry Applicartion, then follow the instruction to update to .290. When you will have the .290 Rooted then you are ready to Update to .136 with the same method HERE
Watch the Tutorial Video How To.
This is all for Locked Bootlader.
Downgrade to 534. Root & backup ta. Flash stock 136 and unlock bootloader. Then flash stock adv kernel by doomlord. Install Update superSU and busybox. You will have root 136. That's it.
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