Below you'll find an unofficial semi-bootleg version of TWRP for the Mate 20 X. I say bootleg because I took @Pretoriano80's P10 lite build and modified it for our devices.
Credits: teamwin, @Pretoriano80, @ante0
Testers: @cflynt
Download: Download TWRP for Mate 20 X
Installation guide:
Welcome to the TWRP installation guide for the Mate 20 X. Keep in mind that installing this REQUIRES you to format your data and remove encryption in order for TWRP to read your /data partition and be able to create backups, so backing up your internal storage is recommended if you want to keep anything from it. This will factory reset your device as well.
Flashing TWRP to the eRecovery ramdisk partition is recommended as it allows you to have both Magisk root and TWRP simultaneously. Otherwise, you can flash between Magisk and TWRP when you need it by flashing this image to recovery_ramdisk. This guide will focus on eRecovery installation.
Magisk root and ADB/a terminal app is REQUIRED for the installation of TWRP as fastboot does not allow flashing of erecovery_ramdisk partition.
Backing up your original eRecovery:
The easiest way to accomplish this is to download "partitions backup & restore" from the google play store, and using that app to back up "erecovery_ramdisk." However, you can also accomplish this with adb by running the command "dd if=/dev/block/bootdevice/by-name/erecovery_ramdisk of=/sdcard/erecovery_ramdisk_stock.img" with your device hooked up to a computer. If you are backing up your internal storage, do it after creating this backup. Otherwise, copy this backup to a safe location on your computer.
Booting to TWRP: Booting into TWRP requires a different button combination.
-Booting to TWRP is as simple as getting to the standard boot splash "corruption" screen. When you see this, it will be followed by instructions to hold volume UP for three seconds. Doing this will boot you into TWRP or eRecovery, depending on which one you have installed. With the phone connected to a power source, USB or AC, reboot/boot the phone holding volume UP. Once the standard corruption screen is displayed, release and hold the volume UP key again.
Booting to Magisk root:
-Booting to Magisk root requires the same volume UP key combination, but the phone must NOT be connected to a power source (USB or AC), OR you must use the "adb reboot recovery" command. Reboot/boot the device holding volume UP. This will display the standart boot splash "corruption" screen but will NOT show the standard instructions for booting into eRecovery. It will simply show a "your device is booting" message under the "corruption" message.
Booting to Magisk root from TWRP: the Reboot>Recovery option in TWRP does NOT reboot the device back into TWRP. This is used to boot Magisk root.
-From TWRP, tap the Reboot button followed by Recovery. Normally, the device would boot back into TWRP, but since TWRP is installed to the eRecovery partition and Magisk is installed to the normal recovery partition, it reboots to Magisk root instead.
Booting back into TWRP from TWRP: Using the Reboot>System option in TWRP will get you back to the standard corruption boot splash screen where you can use the "Booting into TWRP" instructions above to get back into TWRP.
-From TWRP, tap the Reboot button followed by System. This will reboot the device normally, giving you the standard corruption screen followed by a normal boot WITHOUT Magisk root. Use this option only if you plan on rebooting back into TWRP with the "Booting into TWRP" instructions above. Otherwise, use the Reboot>Recovery option to get you back into a rooted system.
Modifying system from TWRP: This device uses "System as root" file structure, so it's a bit different to modify system from TWRP.
-Go to the mount option in twrp and mount "System_root" From here, you'll need to browse /system_root NOT /system in order to make changes to system.
*******************INSTALLING TWRP TO ERECOVERY*******************
Flashing TWRP to eRecovery ramdisk:
-Hook your phone up to a PC.
Step 1.
Start by copying the TWRP image to your internal storage OR nm card. Rename it to "twrp.img" to make typing the next command easier.
Step 2.
Using ADB or a terminal app, gain SU access and run the following command: "dd if=/sdcard/twrp.img of=/dev/block/bootdevice/by-name/erecovery_ramdisk"
Step 3.
Reboot your phone into TWRP by following the "Booting to TWRP" instructions above.
Step 4.
Once you are in TWRP, you will need to format data, as TWRP cannot read encrypted storage on this device yet. Do this in the "wipe" "Format Data" section of TWRP.
Step 5.
Once data is formatted, copy the fstab.kirin980 file from this package to your internal storage or nm card.
Step 6.
Go to "mount" in twrp, and mount Vendor.
Step 7.
Use TWRP file manager in the "advanced" section of TWRP to copy fstab.kirin980 from your internal storage or nm card to /vendor/etc. This will overwrite the original fstab.kirin980 file and replace it with our modified one removing forced encryption so that the system won't try and re-encrypt your device on boot.
Step 8.
Reboot>Recovery to get back into a rooted system, which is now factory resetted.
DO NOT USE ANY OF THE TWRP SUGGESTIONS TO INSTALL ROOT TO YOUR SYSTEM. Disable the notice to install root by going into TWRP settings and unchecking the relevant box.
Credits: teamwin, @Pretoriano80, @ante0
Testers: @cflynt
Download: Download TWRP for Mate 20 X
Installation guide:
Welcome to the TWRP installation guide for the Mate 20 X. Keep in mind that installing this REQUIRES you to format your data and remove encryption in order for TWRP to read your /data partition and be able to create backups, so backing up your internal storage is recommended if you want to keep anything from it. This will factory reset your device as well.
Flashing TWRP to the eRecovery ramdisk partition is recommended as it allows you to have both Magisk root and TWRP simultaneously. Otherwise, you can flash between Magisk and TWRP when you need it by flashing this image to recovery_ramdisk. This guide will focus on eRecovery installation.
Magisk root and ADB/a terminal app is REQUIRED for the installation of TWRP as fastboot does not allow flashing of erecovery_ramdisk partition.
Backing up your original eRecovery:
The easiest way to accomplish this is to download "partitions backup & restore" from the google play store, and using that app to back up "erecovery_ramdisk." However, you can also accomplish this with adb by running the command "dd if=/dev/block/bootdevice/by-name/erecovery_ramdisk of=/sdcard/erecovery_ramdisk_stock.img" with your device hooked up to a computer. If you are backing up your internal storage, do it after creating this backup. Otherwise, copy this backup to a safe location on your computer.
Booting to TWRP: Booting into TWRP requires a different button combination.
-Booting to TWRP is as simple as getting to the standard boot splash "corruption" screen. When you see this, it will be followed by instructions to hold volume UP for three seconds. Doing this will boot you into TWRP or eRecovery, depending on which one you have installed. With the phone connected to a power source, USB or AC, reboot/boot the phone holding volume UP. Once the standard corruption screen is displayed, release and hold the volume UP key again.
Booting to Magisk root:
-Booting to Magisk root requires the same volume UP key combination, but the phone must NOT be connected to a power source (USB or AC), OR you must use the "adb reboot recovery" command. Reboot/boot the device holding volume UP. This will display the standart boot splash "corruption" screen but will NOT show the standard instructions for booting into eRecovery. It will simply show a "your device is booting" message under the "corruption" message.
Booting to Magisk root from TWRP: the Reboot>Recovery option in TWRP does NOT reboot the device back into TWRP. This is used to boot Magisk root.
-From TWRP, tap the Reboot button followed by Recovery. Normally, the device would boot back into TWRP, but since TWRP is installed to the eRecovery partition and Magisk is installed to the normal recovery partition, it reboots to Magisk root instead.
Booting back into TWRP from TWRP: Using the Reboot>System option in TWRP will get you back to the standard corruption boot splash screen where you can use the "Booting into TWRP" instructions above to get back into TWRP.
-From TWRP, tap the Reboot button followed by System. This will reboot the device normally, giving you the standard corruption screen followed by a normal boot WITHOUT Magisk root. Use this option only if you plan on rebooting back into TWRP with the "Booting into TWRP" instructions above. Otherwise, use the Reboot>Recovery option to get you back into a rooted system.
Modifying system from TWRP: This device uses "System as root" file structure, so it's a bit different to modify system from TWRP.
-Go to the mount option in twrp and mount "System_root" From here, you'll need to browse /system_root NOT /system in order to make changes to system.
*******************INSTALLING TWRP TO ERECOVERY*******************
Flashing TWRP to eRecovery ramdisk:
-Hook your phone up to a PC.
Step 1.
Start by copying the TWRP image to your internal storage OR nm card. Rename it to "twrp.img" to make typing the next command easier.
Step 2.
Using ADB or a terminal app, gain SU access and run the following command: "dd if=/sdcard/twrp.img of=/dev/block/bootdevice/by-name/erecovery_ramdisk"
Step 3.
Reboot your phone into TWRP by following the "Booting to TWRP" instructions above.
Step 4.
Once you are in TWRP, you will need to format data, as TWRP cannot read encrypted storage on this device yet. Do this in the "wipe" "Format Data" section of TWRP.
Step 5.
Once data is formatted, copy the fstab.kirin980 file from this package to your internal storage or nm card.
Step 6.
Go to "mount" in twrp, and mount Vendor.
Step 7.
Use TWRP file manager in the "advanced" section of TWRP to copy fstab.kirin980 from your internal storage or nm card to /vendor/etc. This will overwrite the original fstab.kirin980 file and replace it with our modified one removing forced encryption so that the system won't try and re-encrypt your device on boot.
Step 8.
Reboot>Recovery to get back into a rooted system, which is now factory resetted.
DO NOT USE ANY OF THE TWRP SUGGESTIONS TO INSTALL ROOT TO YOUR SYSTEM. Disable the notice to install root by going into TWRP settings and unchecking the relevant box.
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