The main source of inspiration were this thread and this thread.
The first steps are to install the specific tools on linux to be able to flash a new OS on the phone. On my PC I have Arch Linux, I had to install android-tools : sudo pacman -S android-tools
Check if the phone is rooted
Before trying to root your phone, check if it\'s not already rooted(The Chinese phones come already rooted).
To do this you need to follow this steps:
- activate
USB debugging in your phone(Developer options). - Connect the phone via USB(Choose
File transfer when the USB popup appears on the phone) - Check if the device is visible in
adb: adb devices, it should show a device, not an empty list. - Run command
sudo adb reboot bootloader, this will reboot the phone in bootloader mode. Another method is to press and hold volume up and power buttons. Source: here or with images here. - Check if the device is visible when running
sudo fastboot devices - Now check if the device is rooted:
sudo fastboot oem device-info
After you installed android tools, you will have adb and fastboot commands available.
The command from above will generate something like this:
(bootloader) Device tampered: false
(bootloader) Device unlocked: true
(bootloader) Device critical unlocked: true
(bootloader) Charger screen enabled: false
(bootloader) Serial console enabled: false
(bootloader) Serial hw output enabled: false
(bootloader) Display panel:
If the line Device unlocked is set to true, Ex: Device unlocked: true it means that the device is already rooted. But if you have this line: Device unlocked: falseit means that the device is not rooted.
Root the phone
The next steps should be made only if you had this line Device unlocked: false.
Start quote source: here . The next few paragraphs were copy-pasted, because I haven\'t tested them, my phone was already rooted so I didn\'t had to do these things, but I pasted them here just in case someone needs them. You can also check the original thread.
Downgrade to 01D Rom
In some EUI roms you don\'t have to downgrade to 01D rom, but if you don\'t know if your rom can be unlocked or if you wanna feel more confortable and to avoid problems, is better to downgrade
-firmware WIXCNFN5802005041S (see Settings > About Phone to confirm whether you\'re on this firmware or a different one... if you\'re on a different firmware on 20s, you don\'t need to downgrade)
-stock 26s (if your x722 came with 26s, you need to downgrade to 01D)
you can find the file here: Download
Basically:
Attetion!!! This update is to be used in the official recovery, TWRP will hard brick, don\'t flash it with TWRP
- Put update.zip file inside your sdcard
- Reboot to recovery(steps above)
- Click on install update, and 01D rom will be installed
- Now you can reboot to fastboot mode and unlock your bootloader
- In fastboot mode type
fastboot oem unlock-go - Check if the phone is rooted with the steps from above.
Now, under Stock 20S unlocked folder you\'ll have a stock rom, cleaned, unlocked and friendly to root, you can intall in fastboot by opening flash.bat
End quote
Flash TWRP
- Download TWRP from here
- Boot your phone to Recovery Mode(
adb reboot bootloader or Buttons Volume Up + Power pressed until something appears on the screen.) - Flash the
twrp image: sudo fastboot flash recovery ./twrp-3.2.3-0-20181031-codeworkx-zl0.img - Boot again to Recovery Mode:
sudo fastboot boot ./twrp-3.2.3-0-20181031-codeworkx-zl0.img(Or using the buttons like I said above). You should get the twrp menu. - Voila
Flash AICP and Gapps
Here is the original thread: https://forum.xda-developers.com/le-pro3/development/rom-aicp-13-0-pro3-aka-zl1-x727-x720-t3698058
- Download the latest version of AICP
- Download Gapps from here, choose mini or pico(the difference between them is the google apps, you can download the changelogs and compare them to see.)
- Deactivate USB debugging
- Copy archives on your phone via USB(you may need to connect the phone to a windows PC and install the Qualcomm USB drivers: here or here)
- Activate USB debugging
- Reboot into Recovery Mode(buttons or
adb reboot bootloader and sudo fastboot boot ./twrp-3.2.3-0-20181031-codeworkx-zl0.img) - Wipe the System, Cache, Data and ART/Dalvik cache.
- Go to install and search for your AICP archive and swipe to install it.
- Go back to install and search for
Gapps archive and swipe to install it. - You can flash the
Magisk app here, I covered them below. It\'s better if you do them here. Short: Copy archive and install it. - Reboot the system(Optional: Do not install the TWRP app when asked).
Flash and install Magisk
- Check the main thread from XDA formus and download the latest version, the zip archive.
- Deactivate USB debugging
- Copy it on your phone via USB(you may need to connect the phone to a windows PC and install the Qualcomm USB drivers: here or here)
- Activate USB debugging
- Reboot into Recovery Mode(buttons or
adb reboot bootloader and sudo fastboot boot ./twrp-3.2.3-0-20181031-codeworkx-zl0.img) - Go to install and search for your archive, swipe to install it and reboot the system.
- After reboot, open the
Magisk app, it will ask you to install the full version, do it. - After everything is done, you will notice that it installed
Magisk Manager app, and it removed the Magisk app. - Open
Magisk Manager and click on install Magisk, choose the zip version, it will download it. - Reboot into recovery mode and install again the
Magisk zip archive. - Reboot the system.
- Voila.
