(SOLVED)Relock bootloader - Lenovo Zuk Z2 Pro Questions & Answers

Requirements:
This procedure has been tested only in stock roms without root, testing on custom roms or roms with root at your own risk.
xxxxxxxxxxxxxxxxxxxxxxx
1-unlock bootloader
2-flash twrp
3-flash you changes
5-Restore recovery stock (you can find "recovery.img" stock within your rom Qfil)
6-Enter in fastboot mode
7-fastboot -i 0x2b4c oem lock-go

Related

How to change from CWM to TWRP recovery?

Hey guys, when i unlocked and rooted the phone (using the all-in-one tool), i selected to flash CWM recovery, since its the one im familiar with, but from what i've been reading, seems that with CWM i can't flash kernels (at least not the easy way...) so i want to change to TWRP to be able to flash kernels using its dumlock feature...
So, how do i change from one to the other??
Thanks!
Coldsun15
You can use the tool or flash the recovery with fastboot
The command is:
Code:
fastboot flash recovery name_of_recovery.img

need help installing custom rom

hello,
i switched from s2 to xperia z
unlocked my bootloader and installed kernel now phone is rooted and bootloader is unlocked
i want to install pabx )http://forum.xda-developers.com/showthread.php?t=2305427) rom
but im not getting this install instruction
Installation / Upgrade
Extract the archive (unzip pabx_aosp_yuga*.zip)
adb reboot-bootloader
fastboot flash boot boot.img ; fastboot flash system system.img
If this is an initial installation, also run: fastboot flash userdata userdata.img # NOTE: THIS WILL WIPE YOUR /data - only do this on first-install
fastboot reboot
Click to expand...
Click to collapse
thank you

fastboot flash boot boot.img no recovery

Why can't I go into recovery whenever I do this step to install cm11/cm12 roms? I can boot into recovery fine in stock roms using either dual recovery or stock kernel flashed from zips. My fastboot command didn't return any error.

Stuck in TWRP after flashing boot.img

hey people,
I just tried to flash twrp on my z3c.
however I accidentally used something along the lines of
Code:
fastboot flash boot twrp.img
instead of
Code:
fastboot flash recovery twrp.img
can I easily get back to the stock boot image?
the bootloader is unlocked and I can still access fastboot..
cheers!
You can try flash a correct kernel for your device and firmware
Let's call it by "kernel.img", so use the follow command: fastboot flash boot kernel.img
Then you can flash your recovery as you wish

Mi A2 has not slot b

As I say in the tittle, my phone has not slot b. It means that when I try to flash any .img or .zip I have an error message telling my that "XXX_b not accesible".
How can I create the partition? I have android one and everything locked as I flashed the stock image vía COM because I have no idea how to solve the partition problem.
gfpablo_ said:
As I say in the tittle, my phone has not slot b. It means that when I try to flash any .img or .zip I have an error message telling my that "XXX_b not accesible".
How can I create the partition? I have android one and everything locked as I flashed the stock image vía COM because I have no idea how to solve the partition problem.
Click to expand...
Click to collapse
You say you are trying to flash something but then you also say that everything is locked. You can't flash anything other than the stock firmware (in EDL mode) if your bootloader is locked.
Catsonvi said:
You say you are trying to flash something but then you also say that everything is locked. You can't flash anything other than the stock firmware (in EDL mode) if your bootloader is locked.
Click to expand...
Click to collapse
I tried to flash it when i have everything unlocked. I tried to flash ASOP v6.6 and the result was a bricked phone. However I flashed the android one stock ROM and locked everything with the Xiaomi flash program.
You need to flash stock through EDL
Nebrassy said:
You need to flash stock through EDL
Click to expand...
Click to collapse
That's what i've done. Although, if I try to flash TWRP from fastboot I have an error message telling me that I have no slot b
gfpablo_ said:
That's what i've done. Although, if I try to flash TWRP from fastboot I have an error message telling me that I have no slot b
Click to expand...
Click to collapse
You can't flash the TWRP image from fastboot, since our phone does not have a seperate recovery partition and you also cannot flash ANYTHING (other than stock via EDL) if your phone's bootloader is locked.
Now since it seems that your bootloader is locked, you need to enable developer options first and then in developer options enable the "OEM unlocking" option. After that you need to go to fastboot in order to unlock the bootloader and use these commands one at the time:
fastboot flashing unlock
fastboot flashing unlock_critical
Keep in mind that after using these commands you will get a prompt on your phone to confirm that you want to unlock the bootloader and doing so will erase everything (basically like doing a factory reset).
After you fully unlock the bootloader, in order to flash TWRP with stock you need to go to the official TWRP website and find the .img and the .zip installer for the Mi A2. You need to boot the .img via fastboot with fastboot boot *location to the .img* (without the asterisks) and then transfer and flash the TWRP .zip installer with TWRP. After that you can boot into TWRP normally without fastboot booting.
If you want to flash a custom ROM you will still need to fastboot boot into the TWRP .img because the .zip you flashed is tied to the system, and since you need to wipe the system before flashing a custom ROM you will also wipe the flashed TWRP.
I still recommend reading this guide: https://forum.xda-developers.com/mi-a2/how-to/guide-how-to-flash-custom-roms-stuff-t3876375
[SOLVED]
Catsonvi said:
You can't flash the TWRP image from fastboot, since our phone does not have a seperate recovery partition and you also cannot flash ANYTHING (other than stock via EDL) if your phone's bootloader is locked.
Now since it seems that your bootloader is locked, you need to enable developer options first and then in developer options enable the "OEM unlocking" option. After that you need to go to fastboot in order to unlock the bootloader and use these commands one at the time:
fastboot flashing unlock
fastboot flashing unlock_critical
Keep in mind that after using these commands you will get a prompt on your phone to confirm that you want to unlock the bootloader and doing so will erase everything (basically like doing a factory reset).
After you fully unlock the bootloader, in order to flash TWRP with stock you need to go to the official TWRP website and find the .img and the .zip installer for the Mi A2. You need to boot the .img via fastboot with fastboot boot *location to the .img* (without the asterisks) and then transfer and flash the TWRP .zip installer with TWRP. After that you can boot into TWRP normally without fastboot booting.
If you want to flash a custom ROM you will still need to fastboot boot into the TWRP .img because the .zip you flashed is tied to the system, and since you need to wipe the system before flashing a custom ROM you will also wipe the flashed TWRP.
I still recommend reading this guide: https://forum.xda-developers.com/mi-a2/how-to/guide-how-to-flash-custom-roms-stuff-t3876375
Click to expand...
Click to collapse
Thank you! I have to admit that I have no idea of whats wrong earlier. This guide solved the problem tho.

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