I have root and twrp recovery but a locked bootloader. The phone is set up perfect.
Can i do a twrp backup, unlock bootloader, then restore twrp backup, or will the bootloader just be relocked when the backup is restored?
I have tried searching but it seems everyone else unlocks bootloader 1st.
thanks in advance
Bootloader status is independent of those partitions so it doesn't matter. Your bootloader won't get automatically locked/unlocked like this...
But remember that all DRM secured features of Sony are gone if you unlock BL (TA partition gets wiped).
Related
As the Title states, I'd like to know if I can do a data backup via the stock Android Recovery, since I heard that Unlocking Bootloader would lead to a data erase. So I was wondering if whether I could restore the backup after unlocking bootloader and have my data intact (It ain't my phone)
I'm not sure but you can make a backup and place it on a computer and then unlock the boot loader and restore it when you are done with all the things.
Use carbon/helium.
So I see
Hi.
First: Sorry My bad English.
So. The base is: FRD-L09C432 officially upgraded to Oreo. Data partition encrypted, bootloader and FRP unlocked status, TWRP installed and my phone rooted with Magisk. After some read in this and other forums I edited the phone fstab files, to delete data encryption. After edit this files I do a "Format Data" in TWRP. After that the FRP status changed from "Unlocked" to "Locked", and in Settings the "OEM Unlock" disabled and grayed. Bootloader status stay in unlocked. So this is the current state. The Recovery not changeable from TWRP to stock, because FRP-Lock status.
So, My questions is: How do I unlock FRP? If I rollback to Nougat, the FRP is unlock or not, or what? How do I rollback with TWRP? HurUpdater? What can I do, because if I rollback and FRP stay locked, I won't flash back the TWRP. And if this occur, I can't root my phone, and have other problems.
Ideas?
Did you try to unlock bootloader via fastboot?
cococchio said:
Did you try to unlock bootloader via fastboot?
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bootloader already unlocked. I won't try to relock, because 1 months ago I relocked, and my phone is bricked. Won't boot to system, and just DC-Unlocker helps to bring back my phone to life.
Good to know. I am also bricked but I was able to unlock bootloader via fastboot. I only have access to error mode.
flash via download mode and wifi
hi all,
I have an unlocked bootloader but not root, and the stock ROM (never changed)
I've read this guide to go back to stock but as I'm not rooted or have a custom rom, would it be possible to simply re-lock the bootloader for the nasty boot up screen message to disappear?
cable_guy said:
hi all,
I have an unlocked bootloader but not root, and the stock ROM (never changed)
I've read this guide to go back to stock but as I'm not rooted or have a custom rom, would it be possible to simply re-lock the bootloader for the nasty boot up screen message to disappear?
Click to expand...
Click to collapse
If you just unlock the bootloader without changing any partitions (like boot, system, recovery etc), you can simply relock the bootloader with the unlock code. But by doing that, the phone will fully factory reset, you may lose all data without backup.
Can we re-lock the boot loader on Pixel devices if the device is rooted and modded with custom boot and recovery partitions? I heard that it will brick the device when you try to re-lock the boot loader.
Also what if recovery partition ever gets corrupted and a user never had enabled OEM unlocking for the boot loader in the developer option as set as default, and the boot loader is locked as is, user can'f flash the factory images and /or full OTA from ADB.
I'm no expert but from what I've read 'Never relock the bootloader unless you are 10000% sure it's full stuck' and if I remember correctly there is no recovery partition on A/B slot builds which is why a brick is a non recoverable scenario (check that out just in case I'm wrong)
I've unlocked my bootloader and it ain't getting relocked after reading through heaps of bricked pixel threads, best to be safe than bricked.
Yep @junglism93 is right, only re-lock bootloader if you are 100% stock and unrooted to avoid bricks. Also Pixel doesn't have a recovery partition, everything happens in the boot partition, that means that in case of problems if you don't want to reflash the whole factory image (which needs unlocked bootloader), you can just reflash boot.img on slot-a and slot-b (which needs unlocked bootloader anyway).
I unlocked my bootloader straight after the unboxing and I can tell it's like a life saviour, if any problem occurs you can always solve it with an unlocked bootloader.
TENN3R said:
Yep @junglism93 is right, only re-lock bootloader if you are 100% stock and unrooted to avoid bricks. Also Pixel doesn't have a recovery partition, everything happens in the boot partition, that means that in case of problems if you don't want to reflash the whole factory image (which needs unlocked bootloader), you can just reflash boot.img on slot-a and slot-b (which needs unlocked bootloader anyway).
I unlocked my bootloader straight after the unboxing and I can tell it's like a life saviour, if any problem occurs you can always solve it with an unlocked bootloader.
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Click to collapse
That seems like a crazy partition scheme on the device. I can't stand that dreaded unlock screen at the startup. plus you never know for sure if that OEM unlock switch in the developer menu will stay enabled all the time and not accidentally get disabled after modding your device so you're just having a very vulnerable device if it is modded...eh?
I wonder if there is a pure Android device which does not have such restrictions and/or actually comes pre-rooted?
I lost my Widevine L1 when I unlocked bootloader and rooted.
How do I relock bootloader without resetting my phone and losing twrp and magisk?
You cannot do that. If you re-lock, you will loose everything.
Imposible
Relocking the bootloader automatically triggers the total wipe of internal storage (format the user data partition as well). This will make the phone exactly as it was when you pulled it out of the box. So there is no way to lock the bootloader and keep anything, nevermind keeping TWRP and root.
If doing what you're suggesting would be possible EVERYONE would would root and TWRP and remove the bootloader to have root and keep Widevine L1 security.