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How to relock bootloader without TA backups.. Android 4.3.. Please help mr

Sent from my C6903 using xda app-developers app

Nuwan75n said:
Sent from my C6903 using xda app-developers app
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it is possible to lock it without a backup, is your camera not working anymore ?

You can try flashtool, BLU option tries to relock it if it's unlocked, theres a good chance you will brick your device!
Have fun
Sent from my C6903 using Tapatalk

AntiDroid said:
it is possible to lock it without a backup, is your camera not working anymore ?
Click to expand...
Click to collapse
Are you sure this is good and/or informative advice? I thought a locked bootloader not finding valid keys in the TA will refuse to ever function usefully again - no boot, no fastboot, no flashmode, nothing, totally bricked, and no way to convert it back to unlocked and get your phone back.
I would like to know if I am wrong about any of that. And... it seems that I was:
** Correction - it is Ok to relock the bootloader without having the pre-unlock data in the TA partition
** Flashing in data from any other TA partition (some other phone) seems certain to brick the phone though.

n0bleINtP said:
Are you sure this is good and/or informative advice? I thought a locked bootloader not finding valid keys in the TA will refuse to ever function usefully again - no boot, no fastboot, no flashmode, nothing, totally bricked, and no way to convert it back to unlocked and get your phone back.
I would like to know if I am wrong about any of that.
Click to expand...
Click to collapse
I've never read about those damages but I read things like the known camera bug.
I unlocked my Z1 on .290 - the Sony release which fixed the problem (4.3). I flashed a Recovery and rooted it with it and my device is working like it was with a "untouched" ROM.
That's all I know.
We could wait for a dev to answer deeper questions.

AntiDroid said:
I unlocked my Z1 on .290 - the Sony release which fixed the problem (4.3).
Click to expand...
Click to collapse
Yes this absolutely fine and is what I did with my Z1, ie do not unlock until after the 290 update is applied - you will see that advice on the Sony unlock website. However if you want a TA backup you need to do that before unlocking as the unlock process will wipe the keys, and you also need root in order to make that copy. (let me know if I am wrong about that)
My process was to root on earlier firmware, copy the TA, update to .290, then unlock. After unlocking full root on .290 is easy with a custom kernel and everything is good: unlocked, rooted *and* working camera.
But you *will* need a copy of the pre-unlock TA partition to regain any of the functions that use the DRM keys if you decide to relock the bootloader later.

It is impossible to get the DRM keys back, and there is no gain from relocking without them, all you're doing is locking down the bootloader without enabling BIONZ, etc, but you can certainly run a stock system if you want.

n0bleINtP said:
Yes this absolutely fine and is what I did with my Z1, ie do not unlock until after the 290 update is applied - you will see that advice on the Sony unlock website. However if you want a TA backup you need to do that before unlocking as the unlock process will wipe the keys, and you also need root in order to make that copy. (let me know if I am wrong about that)
My process was to root on earlier firmware, copy the TA, update to .290, then unlock. After unlocking full root on .290 is easy with a custom kernel and everything is good: unlocked, rooted *and* working camera.
But you *will* need a copy of the pre-unlock TA partition to regain any of the functions that use the DRM keys if you decide to relock the bootloader later.
Click to expand...
Click to collapse
Hello, yesterday I downgraded to rooteable 4.2.2 rom in order to backup TA partition. Once I had backup, I updated to 4.3 (290) and unlocked bootloader, then flashed recovery. With recovery was easy to flash superSu. Now I have "stock" rom with root and unlocked bootloader, but I realized that x-reality wasn't warking anymore (because of the DRM keys loss).
I tried to recover TA partition, but I caused a soft-brick, wich I only could solve flashing a 290 ftf through flashtool, but I lost root. My question is: It is possible to have root and DRM keys (TA partition restored)??
Thank you very much.

yanbee said:
Hello, yesterday I downgraded to rooteable 4.2.2 rom in order to backup TA partition. Once I had backup, I updated to 4.3 (290) and unlocked bootloader, then flashed recovery. With recovery was easy to flash superSu. Now I have "stock" rom with root and unlocked bootloader, but I realized that x-reality wasn't warking anymore (because of the DRM keys loss).
I tried to recover TA partition, but I caused a soft-brick, wich I only could solve flashing a 290 ftf through flashtool, but I lost root. My question is: It is possible to have root and DRM keys (TA partition restored)??
Thank you very much.
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Click to collapse
No, never.

Just2Cause said:
No, never.
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So, apart from losing x-reality and some Sony apps functionalities (which I dont care). Do you lose something else? I heard about losing bionz processor, but camera still works, then I dont know how far this is true.
The incompatibility problem of root and restored TA partition, is because flashing recovery (which modifies kernel) or supersu.apk it self?
Thank you VERY much!

You loose bionz, but not x-reality. I unlocked my bootloader and I have x-relity enabled.
Some ROMs won't have working camera, for example: android 4.4 KitKat ported from xperia z ultra GPe, and some other ROMs.

Just2Cause said:
You loose bionz, but not x-reality. I unlocked my bootloader and I have x-relity enabled.
Some ROMs won't have working camera, for example: android 4.4 KitKat ported from xperia z ultra GPe, and some other ROMs.
Click to expand...
Click to collapse
I can see that the x-reality option is still on menu, and you can enable/disable it, but it doesn't work. Before, I could see in the first second of picture showing how x-reality improves the image (its an effect that can be seen with the naked eye), this is not happening now. By the way, its for sure that bionz stop working? How could I take pictures without it?
Thank you

yanbee said:
I can see that the x-reality option is still on menu, and you can enable/disable it, but it doesn't work. Before, I could see in the first second of picture showing how x-reality improves the image (its an effect that can be seen with the naked eye), this is not happening now. By the way, its for sure that bionz stop working? How could I take pictures without it?
Thank you
Click to expand...
Click to collapse
Not sure about bionz, but I guessed it as I had the x-relity option enabled. I can't tell if it works or not as I don't have camera (I'm using ported 4.4)
It would be nice of someone confirmed it.

Correct me if i am wrong.
Bionz is a service which improves the pictures after a shot, isn't it ?
Bionz and X-Reality are things u can't detect that easy like "oh that effect is from X-Reality" or something else.
I thought the main reason for not working cameras on other roms was that the dev's didn't apply those 4.3 changes :S

AntiDroid said:
Correct me if i am wrong.
Bionz is a service which improves the pictures after a shot, isn't it ?
Bionz and X-Reality are things u can't detect that easy like "oh that effect is from X-Reality" or something else.
I thought the main reason for not working cameras on other roms was that the dev's didn't apply those 4.3 changes :S
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Click to collapse
Bionz it's a image processor that includes xperia Z1, it process the pictures taken instead the cpu. I dont know if it's easy to detect if it's working or not. But in the case of x-reallity it's very simple, when you open a picture in Sony gallery app, you can see how the picture "improves" quality in the first second. It is no so evident in all pictures, but can be detected by a naked eye, as I do.
My only doubt is about bionz processor, I already know that I loss x-reality. But I want to be SURE if bionz processing is also lost. I want to have full root (with unlocked bootloader), and have bionz enabled. I dont care x-reality or Sony apps.
Thank you very much

Just2Cause said:
No, never.
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Click to collapse
Not true. If you have a TA backup, install .290, unlock bootloader, install a recovery, root, reflash stock boot partition, restore TA partition, you will end up with a booting, rooted, .290 installation.

Rekoil said:
Not true. If you have a TA backup, install .290, unlock bootloader, install a recovery, root, reflash stock boot partition, restore TA partition, you will end up with a booting, rooted, .290 installation.
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Click to collapse
Are you sure about that? :fingers-crossed:

Just2Cause said:
Are you sure about that? :fingers-crossed:
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Click to collapse
I did that and it worked
Sent from my iPad Air using Tapatalk

Rekoil said:
Not true. If you have a TA backup, install .290, unlock bootloader, install a recovery, root, reflash stock boot partition, restore TA partition, you will end up with a booting, rooted, .290 installation.
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jjpro45 said:
I did that and it worked
Tapatalk
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Thank you VERY much!!! Could someone tell me how to reflash boot partition only?? The TA partition which I must restore, could be restored in 290 if backups comes from 534?

DRM Keys

If i make a TA Backup, will i be good to go with rooting and all that stuff without having to worry about anything?
With a backup, will i always be able to downgrade/upgrade to any custom firmware/original firmware, and or use kernels and stuff.
Unlock/Lock Bootloader.
Can i always go back to stock phone with drm keys and lock bootloader making it 100% factory stock?
And can i have a rooted device with unlocked bootloader + the drm functions working?

Gnubaver said:
If i make a TA Backup, will i be good to go with rooting and all that stuff without having to worry about anything?
With a backup, will i always be able to downgrade/upgrade to any custom firmware/original firmware, and or use kernels and stuff.
Unlock/Lock Bootloader.
Can i always go back to stock phone with drm keys and lock bootloader making it 100% factory stock?
And can i have a rooted device with unlocked bootloader + the drm functions working?
Click to expand...
Click to collapse
The answer of all of your concerns is yes and yes you can always go to 100% factory state with your ta backed up ......
Assuming you will not mess up in flashing roms............

Are you sure? Cause what ive heard is, that you may backup your TA, but the DRM-Keys will remain forever lost.
For further information, this Thread questions the consequences of loosing DRM-Keys

Xecu said:
Are you sure? Cause what ive heard is, that you may backup your TA, but the DRM-Keys will remain forever lost.
For further information, this Thread questions the consequences of loosing DRM-Keys
Click to expand...
Click to collapse
Does not making a backup of TA = Backup DRM Keys.
And how can you screw up flashing roms?

Yes.
"And can i have a rooted device with unlocked bootloader + the drm functions working?"
Not sure about that, what I know if you Unlock Bootlader the DRM Keys are lost and they do not working. Anyway if you have Backup TA you can go back to Stock with functionally DRM Keys.

Downgrade to 4.2.2, root via vroot and use ta backup and you good to go. Did the same.
Sent from my C6902 using Tapatalk

eclyptos said:
Yes.
"And can i have a rooted device with unlocked bootloader + the drm functions working?"
Not sure about that, what I know if you Unlock Bootlader the DRM Keys are lost and they do not working. Anyway if you have Backup TA you can go back to Stock with functionally DRM Keys.
Click to expand...
Click to collapse
So I got something confused there. Good to know that I can always revert to pure stock.

Xecu said:
Are you sure? Cause what ive heard is, that you may backup your TA, but the DRM-Keys will remain forever lost.
For further information, this Thread questions the consequences of loosing DRM-Keys
Click to expand...
Click to collapse
Wrong. If you backed up your TA partition before you FIRST unlocked your bootloader, then your DRM keys are fine within the TA backup.
Test this if you like by downgrading to 4.2.2 WITHOUT restoring TA. Your camera will not focus etc etc
Now restore TA and as if by magic, everything is fine again (though your bootloader will be relocked)

[Q] restore ROM Backup with TA Partition

Hello,
i have an Firmware Backup from the Stock 157 ROM with TA Patition (ta.emmc.win, ta.emmc.win.md5) on my SD Card. I made this before i unlock my device.
When i would restore this Backup, is the Bootloader closed after this, or would my device Hardbricked?
Greets Lars

No one an idea?

-Happy Feet- said:
Hello,
i have an Firmware Backup from the Stock 157 ROM with TA Patition (ta.emmc.win, ta.emmc.win.md5) on my SD Card. I made this before i unlock my device.
When i would restore this Backup, is the Bootloader closed after this, or would my device Hardbricked?
Greets Lars
Click to expand...
Click to collapse
My advice, try to lock the bootloader first (Be sure to be on stock .157 before relocking and backup your SD CARD) then after that, restore your backup stock .157. Everything should work fine since you'd just relock your bootloader, maybe it will erase some data, but in my case after i unlock or relock my BL, no data was loss during the procedure.
For the TA Partition, have you made any backup using this method or any backup TA tool? I can't assure you if the DRM keys will still be intact in the backup ROM.

yoorie016 said:
My advice, try to lock the bootloader first (Be sure to be on stock .157 before relocking and backup your SD CARD) then after that, restore your backup stock .157. Everything should work fine since you'd just relock your bootloader, maybe it will erase some data, but in my case after i unlock or relock my BL, no data was loss during the procedure.
For the TA Partition, have you made any backup using this method or any backup TA tool? I can't assure you if the DRM keys will still be intact in the backup ROM.
Click to expand...
Click to collapse
Sure, an Backup is already present at my PC. That was the first thing that I have do with this phone. I ask only if it possible with this way. I mean I have read last year an post from Doomloard. But I can't find this post.

Good! Relock using flashtool, restore backup then check if there are any issues, then finally, restore the DRM keys, just to be sure..

I think it is better I flash an complete ftf file an relock then... I don't need this backup anyone... Thanks for help.

-Happy Feet- said:
I think it is better I flash an complete ftf file an relock then... I don't need this backup anyone... Thanks for help.
Click to expand...
Click to collapse
Okay, just check first if the DRM keys are still intact after flashing the ftf, then closed this thread after if the problem is solved. thank you!

if u want to unlock bl: use flashtool
if u want to relock bl: use TA tool [if and only if u did a back up using TA and b4 unlocking bl]
BE ON STOCK FTF

sim card not valid after flash

I was trying flash rom 4.2.2 and i checked "simlock.ta" option then my phone note sim card not valid and lose some funtion like camera but i can fix by install restore drm key funtion in here:
http://forum.xda-developers.com/crossdevice-dev/sony/xperia-z1-z2-z3-series-devices-drm-t2930672
but i cant solve sim card not valid because i dont have file TA backup.
And can i use other phone's file TA backup for my phone?
Thanks for help!

truyennguyends said:
I was trying flash rom 4.2.2 and i checked "simlock.ta" option then my phone note sim card not valid and lose some funtion like camera but i can fix by install restore drm key funtion in here:
http://forum.xda-developers.com/crossdevice-dev/sony/xperia-z1-z2-z3-series-devices-drm-t2930672
but i cant solve sim card not valid because i dont have file TA backup.
And can i use other phone's file TA backup for my phone?
Thanks for help!
Click to expand...
Click to collapse
Is your bootloader unlocked? Is your phone C6902? Why in the world would you want to flash antiquated 4.2.2, especially if your bootloader is unlocked. The unlocking guide specifically states you have to be at least on 4.3 in order not to lose camera. If your phone is C6902 and you flashed C6903, you have a wrong baseband.
No. You can't use another phone's TA backup, unless you want to brick your phone.

optimumpro said:
Is your bootloader unlocked? Is your phone C6902? Why in the world would you want to flash antiquated 4.2.2, especially if your bootloader is unlocked. The unlocking guide specifically states you have to be at least on 4.3 in order not to lose camera. If your phone is C6902 and you flashed C6903, you have a wrong baseband.
No. You can't use another phone's TA backup, unless you want to brick your phone.
Click to expand...
Click to collapse
My phone is SOL23 and bootloader in locked but i check bootloader status is uknow. I flashed rom stock but notthing change.
This post said i can solve my problem with file TA backup
http://forum.xda-developers.com/z3-compact/help/rooting-status-unknown-sim-card-camera-t3279419
But i dont have.
Ty :good:

truyennguyends said:
My phone is SOL23 and bootloader in locked but i check bootloader status is uknow. I flashed rom stock but notthing change.
This post said i can solve my problem with file TA backup
http://forum.xda-developers.com/z3-compact/help/rooting-status-unknown-sim-card-camera-t3279419
But i dont have.
Ty :good:
Click to expand...
Click to collapse
I am not familiar with SOL23, but if your bootloader is locked, there is no permanent damage. You just need to re-flash the original firmware for SOL23. Try to repair it with Sony flashtool...
You have to restore your phone to original, then, if you want to unlock bootloader, do a TA backup, so that you can restore DRM function in case you would want to relock. If you unlock without backing up, you will lose your DRM key forever...

Proximity sensor always enabled

Hi guys, I've repaired my Z3+ but now the proximity sensor stays always on so on phone call the screen stay black even if I press the power button.
Is there a way to disable the sensor so I can enable and lock screen on call just by the power button? I'm seeing some app on the play store but I prefer a tips from you before make some other damage.
If it's possible without root, but if the only solution need root (so unlock the bootloader) I'll do it.
Thank you

Up

have you tried flashing the phone?

zemetal said:
have you tried flashing the phone?
Click to expand...
Click to collapse
Nope, if possible I would try other chance and then go to flash the phone for the last chance

zippo7kyller said:
Nope, if possible I would try other chance and then go to flash the phone for the last chance
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Click to collapse
you can flash the phone with the correct version and region, just select flash system only, you won't lose any of your data, i did that several time for testing mods, don't forget to backup TA partitions if your BL is locked, just in case :highfive:
P.S: you don't need to unlock bootloader to flash the system partition

zemetal said:
you can flash the phone with the correct version and region, just select flash system only, you won't lose any of your data, i did that several time for testing mods, don't forget to backup TA partitions if your BL is locked, just in case :highfive:
P.S: you don't need to unlock bootloader to flash the system partition
Click to expand...
Click to collapse
Oh good! U think that this may solve the problem? Can you link me to a reliable tutorial to flash the system and make a backup?
Thank you very much :fingers-crossed:

zippo7kyller said:
Oh good! U think that this may solve the problem? Can you link me to a reliable tutorial to flash the system and make a backup?
Thank you very much :fingers-crossed:
Click to expand...
Click to collapse
well, am not sure, but it's worth a try
1. http://forum.xda-developers.com/cro...xperifirm-xperia-firmware-downloader-t2834142
2. http://www.flashtool.net/downloads.php
3. http://www.xperiablog.net/2014/08/1...re-files-using-xperifirm-and-flashtool-guide/
4. http://forum.xda-developers.com/z5-compact/general/flashtool-how-to-flash-sony-xperia-z5-t3425367
p.s:
1. download the correct firmware version and region for your phone
2. in the firmware selector in flashtool, under "sin" section, check everything except system. and under misc TA, check everything.
3. leave all the other check boxes UNCHECKED

zemetal said:
you can flash the phone with the correct version and region, just select flash system only, you won't lose any of your data, i did that several time for testing mods, don't forget to backup TA partitions if your BL is locked, just in case :highfive:
P.S: you don't need to unlock bootloader to flash the system partition
Click to expand...
Click to collapse
Why back up TA if he is locked bootloader? As far as I know flashing .ftf file with flashtool doesn't affect TA partition. Am I right? I have made my all flashing with flashtool by selecting all wipes in wipe section. BTW I am locked bootloader Z3+ E6553 .305 firmware

cashflow67 said:
Why back up TA if he is locked bootloader? As far as I know flashing .ftf file with flashtool doesn't affect TA partition. Am I right? I have made my all flashing with flashtool by selecting all wipes in wipe section. BTW I am locked bootloader Z3+ E6553 .305 firmware
Click to expand...
Click to collapse
just saying, because am on unlocked BL. precautions? huh

zemetal said:
just saying, because am on unlocked BL. precautions? huh
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Click to collapse
How did you dare unlock your bootloader? photo quality, image enchanments were same after you restored your TA back up? Because once I tried to unlock my old Z1 bootloader, my phone really f.. up even if I restored my TA back up. I had regret to unlock it, so I'm really scared to unlock it again

cashflow67 said:
How did you dare unlock your bootloader? photo quality, image enchanments were same after you restored your TA back up? Because once I tried to unlock my old Z1 bootloader, my phone really f.. up even if I restored my TA back up. I had regret to unlock it, so I'm really scared to unlock it again
Click to expand...
Click to collapse
well and awesome guy made this :highfive: :
http://forum.xda-developers.com/crossdevice-dev/sony/xperia-z1-z2-z3-series-devices-drm-t2930672
everything works perfect, just when there's OTA updates, i gotta download the whole ftf file and flash via flashtool, but that's not a big deal

My Z3+ got the same problem. Proximity sensor was always on.
Sent it to SONY repair center, they did a recalibration.
I'm just curious how can i do it myself? Where is this option to recalibrate proximity switch?