[Q] Can I relock bootloader and do the backup ta? - Xperia SP Q&A, Help & Troubleshooting

As the title,
I did not do the backup ta before I unlock bootloader . And now, can i use some other way to relock bootloader ,and then do the backup ta again?
Greatly hope someone can answer the question (

kclement said:
As the title,
I did not do the backup ta before I unlock bootloader . And now, can i use some other way to relock bootloader ,and then do the backup ta again?
Greatly hope someone can answer the question (
Click to expand...
Click to collapse
i am afraid you cant..

Related

Questions about unlocking bootloader?

Hi guys,
I loaded my brand new xperia sp with root and cwm on a locked bootloader but now i want to try out CM but from what i understand is that you need an unlocked bootloader, so my question is if i backup my TA partition and unlock my bootloader, then flash cm with it's kernel and would it be possible to reflash the TA partition and relock the bootloader while on CM?
thanks,
noahvt
noahvt said:
would it be possible to reflash the TA partition and relock the bootloader while on CM?
Click to expand...
Click to collapse
No
You can only restore your TA partition and relock the bootloader on the original Sony kernel, if you try to do otherwise you may hard brick your phone.
/\ /\
That.. But you could figure this out by reading the tutorial of DoomLord
All the steps for unlocking and relocking the bootloader are described there

[Q] How to Root/UB/Backup TA with 4.3

Hi guys,
I'm kinda desperate right now. I am using 4.3 with 12.1.A.0.266 firmware.
My aim is to install CWM. For this I need an unlocked Bootloader and Root.
But all tutorials I could find are kinda contradicting themselves.
To root I need UB.
To unlock Bootloader in need to Backup TA partition.
And to backup TA partition I need root.
The tools from doomlord all require the old firmware, but silly me has already updated.
Is there any way to unlock Bootloader without root for backuping TA partition OR root with locked bootloader?
Any help is appreciated
Im afraid there isnt any root method for locked bootloader, so You must flash 4.1 using flashtool, root 4.1, backup TA, flash 4.3, unlock BL, root 4.3 and relock BL by restoring TA. The whole process just sounds hard and its complicated but follow those steps and itll be fine
Cheers
Sent from my C5303 using XDA Premium 4 mobile app
teddy74eva said:
You must flash 4.1 using flashtool, root 4.1, backup TA, flash 4.3, unlock BL, root 4.3 and relock BL by restoring TA.
Click to expand...
Click to collapse
When updating to 4.3 I lose root, dont I? So there must be a way to unlock BL with no root? I think then i would lose my Drm keys, thats why i backuped them on 4.1, didn't I? And i surely can use the backup of TA i made in 4.1 for version 4.3?
Thank you for your help already!
Same, Bro
ShotingCox said:
Hi guys,
I'm kinda desperate right now. I am using 4.3 with 12.1.A.0.266 firmware.
My aim is to install CWM. For this I need an unlocked Bootloader and Root.
But all tutorials I could find are kinda contradicting themselves.
To root I need UB.
To unlock Bootloader in need to Backup TA partition.
And to backup TA partition I need root.
The tools from doomlord all require the old firmware, but silly me has already updated.
Is there any way to unlock Bootloader without root for backuping TA partition OR root with locked bootloader?
Any help is appreciated
Click to expand...
Click to collapse
I got same dilemma. Worstly , I am already unlock bootloader without doing Backup TA . Can I relock bootloader,do the Backup TA again??
kclement said:
I got same dilemma. Worstly , I am already unlock bootloader without doing Backup TA . Can I relock bootloader,do the Backup TA again??
Click to expand...
Click to collapse
i am afraid you cant get ur DRM keys back as you didn't took a TA backup before unlocking bootloader.. :

Quick question about unlocked bootloaders

Hi!
We know that backing up TA with locked bootloader saves DRM keys. I`m not too bothered about this as I have TA backup.
However...
If I create another copy of the TA partition once I have unlocked the bootloader (I know the DRM keys will be gone) but would it enable me to switch between locked and unlocked bootloader states just by restoring the appropriate backup?
So...
TA Backup #1 - Locked bootloader with DRM intact
TA Backup #2 - Unlocked bootloader with DRM gone
Could I just use Backup-TA to switch between both backups and unlock / relock bootloader as I wish? Or does it have to be unlocked via command line every time?
Many thanks for your input.
You can do this,
http://forum.xda-developers.com/showpost.php?p=51222121&postcount=2
gregbradley said:
You can do this,
http://forum.xda-developers.com/showpost.php?p=51222121&postcount=2
Click to expand...
Click to collapse
Good man. Thanks.

Unlock bootloader by official way twice?

May I be able to unlock my bootloader again by the official way if I restore my TA partition and relock it again and leave it same as stock?
Thepho3nix said:
May I be able to unlock my bootloader again by the official way if I restore my TA partition and relock it again and leave it same as stock?
Click to expand...
Click to collapse
Yes.

how to relock bootloader

hi guys i used this tut to unlock my bootloader http://forum.xda-developers.com/showthread.php?t=2292598 ( i have my backup of TA partition )
i'm on stock kitkat now and i want to know if i can use the same tut to relock my bootloader ?
PeriaZ said:
hi guys i used this tut to unlock my bootloader http://forum.xda-developers.com/showthread.php?t=2292598 ( i have my backup of TA partition )
i'm on stock kitkat now and i want to know if i can use the same tut to relock my bootloader ?
Click to expand...
Click to collapse
Well, if you have read the FAQ (which OP suggests to do before any question) Then you must know the answer.
Here's a question from FAQ:
Code:
Q: Can I restore my TA.img file from Backup TA v4 and earlier or another tool?
A: Yes, choose "Convert TA.img" in the menu.

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