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Hi, I am running ARHD 10.3 with the new updated firmware, should I wish to go back to stock to take the official 4.2.2 update when it arrives (made a backup using twrp before I flashed twrp recovery) do I just restore my stock backup and do I have to relock my bootloader?
I believe you'd need both a stock recovery as well as a locked bootloader. Flashing an RUU would be an easy route, or restoring the Nandroid Backup, flashing stock recovery and locking bootloader. I am not so sure you actually need a locked bootloader, but do it just to be safe.
TarekElsakka said:
I believe you'd need both a stock recovery as well as a locked bootloader. Flashing an RUU would be an easy route, or restoring the Nandroid Backup, flashing stock recovery and locking bootloader. I am not so sure you actually need a locked bootloader, but do it just to be safe.
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Thanks I have stock recovery in my backup
Well then all you need is to relock the bootloader and unlock it after receiving the OTA update. Again, I am not sure if you actually need to do that, but it's better to be safe than sorry.
Can someone please help me on this.
What is TA Partition and what are DRM Keys.
If we want to back-up our TA partition what we should do
1. Rooting and then unlock the boot loader or
2. Unlock the boot loader and then rooting
If we should first root the device and then unlock, can we root the device without unlocking the boot loader.
Root without unlocking bootloader, then backup your TA..
Sent by ArF's White SONY Xperia SP (c5303)
Janith Olagama said:
Can someone please help me on this.
What is TA Partition and what are DRM Keys.
If we want to back-up our TA partition what we should do
1. Rooting and then unlock the boot loader or
2. Unlock the boot loader and then rooting
If we should first root the device and then unlock, can we root the device without unlocking the boot loader.
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Click to collapse
TA partition is where ur drm keys reside They are what makes your BE2 work and some other *Xperia only* features
Unlocking BL will format the /data partition. I made cwm backup before. After unlocking, can i safely restore the data partition? Afterwards the phone should be in state as before unlocking, right?
peters. said:
Unlocking BL will format the /data partition. I made cwm backup before. After unlocking, can i safely restore the data partition? Afterwards the phone should be in state as before unlocking, right?
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Hi @peters,
If ur considering unlocking ur BL, then i hope youve made a backup of your TA partition(the partition containing DRM keys needed for Bravia Engine 2)?Restoring the data partition wont relock your bootloader. If u want to relock your bootloader then you have to flash a stock kernel,make sure you are rooted and then restore your TA partition. Or you can use Flashtool to relock your BL.
Hope this helps
Yes i made backup of TA. With restoring of Data partition i wanted to have the phone in the same state as before unlocking. Of course with the difference of loosing Bravia and not using Fota.
My phone is not rooted (in case that make a difference on what method should be used in this case)
I would like to make a full image backup of the phone, factory-reset it, and then re-image it from this backup at a later date.
What is the best method to do the full backup (image) and later restore for a non-rooted phone?
Thank you
You can temporarily boot to a custom recovery like TWRP easily with Nexus root tool kit.
Advanced Utilities - Launch - Fastboot Boot - Custom Recovery
and make a nandroid backup.
I think you need to have your Bootlocker unlocked though....
From a very quick and unscientific Google scan it looks as if pure1water is right - you'll have to unlock your bootloader, which means YOU'LL WIPE YOUR PHONE!!!
(Just making sure... )
To install TWRP you don't need to be rooted.
There are lots of guides, so I won't repeat the detail. You can use Wugfresh's Nexus Root Toolkit (NRT) to set up your PC/laptop drivers so that you can use ADB.
Developer options/enable USB debugging/reboot to bootloader/temporarily fastboot TWRP (or install it permanently, since you'll be using it to restore)/take TWRP backup/copy to PC for safety.
It's well-known that XDA doesn't really approve of NRT when used as a way to circumvent knowledge. Use it for the driver setup, then read a great deal about how to do these steps that I've skipped quickly over above. That way you'll be able to recover when (not "if") you make a mistake and get a bootloop without asking panicky questions in the forum.
to install twrp for a one time use only..
fastboot boot recovery recoveryname.img
to install twrp permanently..
fastboot flash recovery recoveryname.img
If you bootloader isn't already unlocked I think the best you can get is backing up your apps and app data with helium..
It wont be nearly as good as a full TWRP backup but will be able to get a lot of stuff backed up.
I know this doesn't answer your question directly, but just so you know there is at least a little bit of backing up you can do without root or an unlocked bootloader to boot or flash twrp.
https://play.google.com/store/apps/details?id=com.koushikdutta.backup&hl=en
I can't figure out why anyone who knows enough to worry about full phone backups wouldn't have unlocked the bootloader on their Nexus 6 as the very first order of business.
But if you haven't unlocked the bootloader (which will wipe your phone), then the best you can do is to root it, install Titanium Backup, and do a full backup Apps+data. That's not as good or nice as a bootloader level backup, but will get most of the job done for a restore.
quadcrap1 said:
But if you haven't unlocked the bootloader (which will wipe your phone), then the best you can do is to root it, install Titanium Backup, and do a full backup Apps+data.
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Click to collapse
Don't you need to have your bootloader unlocked before rooting though?
XT1925-6 fully stock, what are the most complete backup options before unlocking the bootloader and rooting? Can I backup partitions with adb backup or rsd lite? Is it possible to make a nandroid backup by using fastboot to boot twrp without flashing on this device, or does the locked bootloader prevent even that? If it is possible, are there any problems with booting twrp patched with tipatch on this device? Other options? I'd like a backup as thorough as possible, but at least has to cover anything needed to restore to a fully functioning device if needed. User data and settings would be great, but obviously not as important as IMEI and such.
The most complete backup option in your case is a ADB backup.
No, you can't backup a whole partition with ADB/RSDLite.
You can't even boot TWRP to make a backup.
There is no reason to restore something with a locked bootloader because you can't make any changes.
If your bootloader is unlocked you can first make a backup of every single partition (mmcblk0p1, mmcblk0p2, ...) before doing something else.
My advice is to backup your /persist partition and store it somewhere external on a safe place. It's containing your IMEI.