Hi everybody,
after reading about how to upgrade & root the Xperia SP on the 4.3 firmware I followed the guides to get everything set up.
Now, after being nearly there I'm stuck with a black booting screen.
Here follow the steps I did undertake so far, any help to resolve my issue would be very welcome.
I started with firmware 12.0.A.2.245 rooted with Doomlords method (flash old kernel, root, flash .245 kernel again)
1 backup contacts/messages etc
2 do TA partition Backup with Backup-TA
3 update firmware using PC-Companion
4 unlock bootloader with official sony guide
5 fastboot flash cwm / superSU
---> everything worked fine so far (phone was operational), now I wanted to get the screen mirroring working - meaning the bravia engine. So I went for
6 Backup-TA check backup integrity with dry restore
7 Backup-TA restore TA partition
last step of the restore was: reboot device, which got me to the black screen - which is where I am stuck now.
All I managed so far is entering the fastboot mode, I could confirm this working by issuing a "fastboot devices" which listed the phone as available.
Anyone got any ideas to what went wrong and how to fix this?
update: after going through the unlock bootloader procedure again the phone boots normally again ( fastboot.exe -i 0x0fce oem unlock 0x[...] ) . Now the last problem is getting the TA partition back.
Is this even possible while keeping root?
Flash stock kernel .266 before restoring TA partition.
go to flashmode and flash the kernel.ftf, links of which can be found by searching.
this problem has been posted as FAQ in Bootloader unlocking relocking thread.
Thanks! I'll try this. I thought you only had to reflash the stock kernel if you wanted to relock the bootloader
Hello,
I have unlocked my z1 c6902 bootloader officially from sony website. I have backed up the TA partition but how to use TA partition and relock bootloader. I am on custom firware CM11. Please help i wanna re lock bt because of warranty purpose.
vijay99 said:
Hello,
I have unlocked my z1 c6902 bootloader officially from sony website. I have backed up the TA partition but how to use TA partition and relock bootloader. I am on custom firware CM11. Please help i wanna re lock bt because of warranty purpose.
Click to expand...
Click to collapse
relock your bootloader using Flashtool
guide over here http://forum.xda-developers.com/showthread.php?p=45496437#post45496437
then restore TA partition using the tool you used to backup.
http://forum.xda-developers.com/showthread.php?t=2292598
Thankyou for the help but what is pure stock kernal and flash kernal.sin? I am on cm11. Pls respond.
Just restore your TA then flash a FTF
That's it... all done....
I have first TA restore or flash a ftf? If TA so i have to do it in CM 11?
vijay99 said:
I have first TA restore or flash a ftf? If TA so i have to do it in CM 11?
Click to expand...
Click to collapse
flash ftf first then restore TA.
I don't have to root the phone? I on CM 11 I have to directly flash the ftf file and restore TA?? How to restote TA any video??
TA Restore
vijay99 said:
I don't have to root the phone? I on CM 11 I have to directly flash the ftf file and restore TA?? How to restote TA any video??
Click to expand...
Click to collapse
How did you backup your TA ?
The same tool should also have a restore option.
Whatever rooted firmware you are in...you can always restore TA. But once if you restore a TA of locked bootloader. You cant boot into CM based roms. Or any other stock based ROMS with different kernel. As locked bootloader = Stock Sony Kernel ONLY!
So once if you restored the TA and rebooted and your phone doesnt boot but gives a orange/red LED blink. Dont worry. Flash your FTF and then boot to the official stock rom.
P.S : You can also flash a FTF on unlocked Bootloader.
So now first off all I will flash a .ftf file say eg .757 and once the phone boot up I will restore my TA partition and now BT is locked ryt? Any video how to restore TA backup??
Sorry for so much trouble...
vijay99 said:
So now first off all I will flash a .ftf file say eg .757 and once the phone boot up I will restore my TA partition and now BT is locked ryt? Any video how to restore TA backup??
Sorry for so much trouble...
Click to expand...
Click to collapse
Yes
You don't need a video,just run the tool & restore like how you backup TA
Thanks I will try and let you know..!!:good:
I bought sp once again after the first one got broken but this one have bootloader unlocking not allowed(but no simlock).
Correct me if i'm wrong: If i do try unlocking bootloader and it won't work, can i restore TA and flash stock and phone 'll be allright?
Help me please i cant restore TA
But i have relock my bootloader via flashtool and success
With my Backup TA tools My PC didnt detect ADB permission and then i tried in other PC but after detect there was an error .dll
Help me master
And sorry for bad english
Thanks
after relocking bootloader i can not restore ta backup with flashtool... it says local file and remote file do not match.. how can i solve this problem?