For building TWRP for POCO X3 / X3 NFC (codenamed "karna / surya")

TWRP device tree for POCO X3 (karna/surya)

Works:

• ADB
• Decryption of /data (MIUI A11/Custom rom A12.1)
• Screen brightness settings
• Vibration support
• Correct screenshot
• Correct date/battery level/temperature
• MTP
• Flashing (opengapps, roms, images and so on)
• Backup/Restore to internal/microSD
• Backup/Restore to/from adb (https://gerrit.omnirom.org/#/c/15943/)
• USB OTG
• Fasbootd
• Sideload (adb sideload update.zip)
• Reboot to bootloader/recovery/system/fasbootd
• F2FS/EXT4 Support, exFAT/NTFS where supported

First checkout minimal twrp with aosp tree:

repo init -u https://github.com/minimal-manifest-twrp/platform_manifest_twrp_aosp.git -b twrp-12.1
repo sync

Then add these projects to .repo/manifest.xml:

<project path="device/xiaomi/surya" name="brigudav/android_device_xiaomi_surya_twrp" remote="github" revision="android-12.1" />

Finally execute these:

. build/envsetup.sh
lunch twrp_surya-eng
mka recoveryimage ALLOW_MISSING_DEPENDENCIES=true # Only if you use minimal twrp tree.

To test it:

fastboot boot out/target/product/surya/recovery.img

Using precompiled stock kernel.