Database Develop

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.
Sent from my Xperia Z using XDA premium.
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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.
I'mSent from my C6603 using xda app-developers app
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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.

[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

[Q] Anyway to Unlock Bootloader and keep all data?

Hey all, I am having an Xperia Z C6603. Wondering if there is anyway of unlocking the bootloader and keeping all the data I currently have.
I have already rooted my phone and installed TWRP. Still using stock ROM
Any help or advice is appreciated.
Thank you.

Follow sonys unlock guide where you get you unlock code from using the command prompt way, just remember to take ta backup
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First time you unlock, no. It is not posible to keep your DATA partition.
Subsequents tries using flashtools, it will not erase anything.
So the solution is to make a NANDROID backup, unlock the bootloader, and then restore back
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TA restore

My phone says bootloader unlock allowed no but if i restore a different TA from one that could be unlocked could that change it to bootloader unlock allowed yes?
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FaiselW said:
My phone says bootloader unlock allowed no but if i restore a different TA from one that could be unlocked could that change it to bootloader unlock allowed yes?
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No, you can't
It will be hard bricked your device
For more info please go to this thread
http://forum.xda-developers.com/showthread.php?t=2292598

Relock help

Hello. I bricked my devices while installing 4.3 fw (not official way) and than repaired using official Sony tool. It gave me 4.3 fw and I unlocked bootloader to install root and CWM. Now when I try to relock bl phone doesn't boot, works only with unlocked bl. How to relock device to restore TA partition from backup. Please provide step by step
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