How to upgrade firmware - Sony Xperia X Performance Questions & Answers

How to upgrade firmware - Sony Xperia X Performance Questions & Answers

Hi. I have unlocked bootloader, so i Lost ota update, and i don't do a TA backup.... So how can i upgrade firmware without reflash the whole software?

All I can think of is a backup of data partition if you have TWRP and then do a full system flash. Otherwise you could back-up your own personal information using other apps and then flash and then restore ( I do it this way ) as it's the easiest and I've never had any issues with personal data being lost.

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[Q] Trying to install KK OTA - stock, rooted

Moved this question from here: http://forum.xda-developers.com/showthread.php?p=51198721
I'm currently stock, rooted, S-OFF, and TWRP recovery. I'm flashed to 3.06.651.6 firmware.
I still get the OTA notifications, and my goal is to install the latest OTA update (without RUU) so that I can preserve data. I've created a TWRP backup, but that's the extent of it.
Any help is appreciated.
Other background - I reverted back to 3.06.651.6 after flashing firmware 4.06.xxx because I could not boot normally after that or did not know how.
My bootloader says Tampered, relocked

vflock said:
Moved this question from here: http://forum.xda-developers.com/showthread.php?p=51198721
I'm currently stock, rooted, S-OFF, and TWRP recovery. I'm flashed to 3.06.651.6 firmware.
I still get the OTA notifications, and my goal is to install the latest OTA update (without RUU) so that I can preserve data. I've created a TWRP backup, but that's the extent of it.
Any help is appreciated.
Other background - I reverted back to 3.06.651.6 after flashing firmware 4.06.xxx because I could not boot normally after that or did not know how.
My bootloader says Tampered, relocked
Click to expand...
Click to collapse
Ok
I have never done an OTA or Ran an RUU personally.
To the best of my knowledge you will have to flash the stock recovery and a stock rom to be able to take the OTA.
Sidenote: You say you are re-locked...when you unlock again it's going to wipe your device.
Backup everything important to your PC then run the RUU stuff is gonna get wiped either way might as well use the RUU as it's a cleaner method.
You'll have to flash the 4.06 firmware I pointed you to from the other thread to get the required hboot.

BD619 said:
Ok
I have never done an OTA or Ran an RUU personally.
To the best of my knowledge you will have to flash the stock recovery and a stock rom to be able to take the OTA.
Sidenote: You say you are re-locked...when you unlock again it's going to wipe your device.
Backup everything important to your PC then run the RUU stuff is gonna get wiped either way might as well use the RUU as it's a cleaner method.
You'll have to flash the 4.06 firmware I pointed you to from the other thread to get the required hboot.
Click to expand...
Click to collapse
Serious Q - Am I not On the stock ROM if I never switched ROMs?
But OK, s=you're saying if I were even able to get the stock revoery reloaded, and receive the OTA, but then if i try to unloack bootloader after that I won't be able to? Also serious Q - Do you have a link on performing a good nandroid backup?
Next - if I did run the RUU, how would i quickly restore my data - just using titanium backup? is that the quickest/only way?

vflock said:
Serious Q - Am I not On the stock ROM if I never switched ROMs?
But OK, s=you're saying if I were even able to get the stock revoery reloaded, and receive the OTA, but then if i try to unloack bootloader after that I won't be able to? Also serious Q - Do you have a link on performing a good nandroid backup?
Next - if I did run the RUU, how would i quickly restore my data - just using titanium backup? is that the quickest/only way?
Click to expand...
Click to collapse
If you never changed roms then yes you are on a stock rom.
To unlock the bootloader again you would use Htc Dev again(unless you still have your unlock token) and by doing so it will wipe your phone.
Only way to nandroid is to have a custom recovery which means unocking bootloader.
I personally don't use Titanium Backup so can't answer that...I backup my phone/sdcard to my PC at least once a month (copy and paste to a folder on my PC)

[Q] Unlock Bootloader and Restore Backup

Hi, m8s!
I'm using the official .283 ROM at the moment. I'm root and have CWM. I wonder if I make a backup of my current ROM and unlock my phone's bootloader (hence I lose all my data), could I restore the backup after without re-locking the bootloader? If yes, should I restore just /data or could I make a complete restore?
Thanks in advance!

anyone?

lanluckez said:
anyone?
Click to expand...
Click to collapse
If you would make a backup of your current ROM, that doesn't backup your TA-Partition (I think), you need to make its backup seperately

Order of steps for reverting to Stock (&Restore DRM-Functions)

Hi,
I hope somebody is willing to help me; I couldn't find a guide covering exactly the same problem. Actually, I'm "just" looking for the right order of steps I should perform in order to restore the factory state of my Z3C. I'm currently running Cyanogen Mod 12.1 with unlocked bootloader (obviously). I would like to return to being able to use the DRM Camera functions. Afterwards I'd probably like to try another ROOTED stock-based firmware. (Thus the DRM functions should still be available again, right?)
Current setup: CM 12.1 + bootloader Unlocked + TA Backup has been performed
Aim: flash stock firmware + restore DRM functions + install (pre-rooted) stock-based firmware
What I don't understand: If I re-flash stock firmware the phone won't be rooted anymore, Custom Recovery is going to be lost, right? Is it right to T H E N restore the TA backup? (As the bootloader will be automatically relocked?) Or do I need to perform additional steps or the above mentioned in another order?!?!?
And: Can I then simply flash a stock-based ROM without losing the DRM functions again?
Thanks in advance!

artie_ficial said:
Hi,
I hope somebody is willing to help me; I couldn't find a guide covering exactly the same problem. Actually, I'm "just" looking for the right order of steps I should perform in order to restore the factory state of my Z3C. I'm currently running Cyanogen Mod 12.1 with unlocked bootloader (obviously). I would like to return to being able to use the DRM Camera functions. Afterwards I'd probably like to try another ROOTED stock-based firmware. (Thus the DRM functions should still be available again, right?)
Current setup: CM 12.1 + bootloader Unlocked + TA Backup has been performed
Aim: flash stock firmware + restore DRM functions + install (pre-rooted) stock-based firmware
What I don't understand: If I re-flash stock firmware the phone won't be rooted anymore, Custom Recovery is going to be lost, right? Is it right to T H E N restore the TA backup? (As the bootloader will be automatically relocked?) Or do I need to perform additional steps or the above mentioned in another order?!?!?
And: Can I then simply flash a stock-based ROM without losing the DRM functions again?
Thanks in advance!
Click to expand...
Click to collapse
You simply can not restore back to factory state of your phone unless you have backed up your DRM keys. I'm thinking that you haven't so...
Anyways, you can use a pre-rooted stock ROM and you will have stock state of the Z3C and also root. To do this, you simply download any of the many alternatives in xda. I, myself, recommend you to use Wajk's SlimROM. It has good features, good debloat and awesome battery life. You'll be on stock ROM and have root but you won't be able to use DRM functions. If you want the DRM functions so badly there's a way to spoof it. You can visit here: http://forum.xda-developers.com/z3-...ocked-update-conceptmm-root-recovery-t3291722 and follow the instructions. It will give you the concept version of Marshmallow, root and DRM functions!
The thing is you have lost your DRM functions by unlocking your bootloader. So flashing any other Stock ROM will not bring it back as it has something to do with the system of the phone. If you are OK with a Stock ROM without DRM functions, there are plenty Stock Pre-Rooted Firmwares on xda. You can download one, do a factory reset, and wipe dalvik/cache, then flash the Stock ROM.zip through your recovery. Have the best of luck!
EDIT: I don't know about the TA backup as I have never used it :/

Solution
marshalpear said:
You simply can not restore back to factory state of your phone unless you have backed up your DRM keys. I'm thinking that you haven't so...
Anyways, you can use a pre-rooted stock ROM and you will have stock state of the Z3C and also root. To do this, you simply download any of the many alternatives in xda. I, myself, recommend you to use Wajk's SlimROM. It has good features, good debloat and awesome battery life. You'll be on stock ROM and have root but you won't be able to use DRM functions. If you want the DRM functions so badly there's a way to spoof it. You can visit here: http://forum.xda-developers.com/z3-...ocked-update-conceptmm-root-recovery-t3291722 and follow the instructions. It will give you the concept version of Marshmallow, root and DRM functions!
The thing is you have lost your DRM functions by unlocking your bootloader. So flashing any other Stock ROM will not bring it back as it has something to do with the system of the phone. If you are OK with a Stock ROM without DRM functions, there are plenty Stock Pre-Rooted Firmwares on xda. You can download one, do a factory reset, and wipe dalvik/cache, then flash the Stock ROM.zip through your recovery. Have the best of luck!
EDIT: I don't know about the TA backup as I have never used it :/
Click to expand...
Click to collapse
Thanks for your effort! But you misunderstood me, I have a working backup of my "former" TA partition/DRM keys. All I was wondering about was WHEN exactly I should perform the restore process. But I found out anyway. For whoever should have the same question:
- revert back to the firmware you used when performing the ta/drm backup
- if necessary: root (as the ta-backup tool needs root permissions)
- restore drm key backup with the ta-backup tool
- do whatever ... I installed a pre-rooted stock based fw and it works with DRM keys and root/recovery

How to backup (+restore) current stock OOS?

I'm on the OOS version before the new year's Nougat update. The device is completly untouched: stock rom, stock recovery, bootloader locked.
I'm both interested in updating to nougat (got the OTA notification) and also possibly having root in the future. Now, if I'm understanding this correctly, I need to unlock the bootloader to flash TWRP; and I need TWRP to create nandroid backups.
So how would I backup my current system, so that I'd be able to come back to the current state after unlocking the bootloader? I've only found out about the unlock process wiping the user data after already personalizing all system settings/permissions and apps to my needs... Don't really want to spend days re-doing all of that.
I've heard it's possible to boot into TWRP via fastboot without actually flashing it, would that be an option, or does it also require an unlocked bootloader? Are there maybe exploits to (ab)use in order to get root without unlocking the bootloader, so that I could backup stuff that way, or even flash a custom recovery from within the system, like I did on my old Samsung ages ago? (e.g. Dirty Cow, would that trigger dm-verity and soft-brick my phone to the point where I had to wipe it?)
Any help would be greatly appreciated.

Question TWRP backup and restore

What I need to backup to try a different custom ROM and how I can restore it?
Should I need to remove any screen unlock before backupping in order to be able to restore?
Thanks.

You should backup everything of your current rom for restore it in case your phone get bricked while flashing an incompatible rom or missing any step from the rom flashing procedure

the_arxyn said:
You should backup everything of your current rom for restore it in case your phone get bricked while flashing an incompatible rom or missing any step from the rom flashing procedure
Click to expand...
Click to collapse
Ty, could you be more specific among all options available in backup menu?
What about my question about disabling screen unlock?

Yes you must disable your screen lock in order to be decrypted

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