MTK IMEI patcher for Xiaomi phones with Helio G Series SoC

A script that recreates the NVRAM partition and makes a private TWRP flashable for your phone

Supported devices

Redmi Note 8 Pro
Redmi Note 10S / Redmi Note 11 SE / POCO M5s
Redmi Note 12S
Redmi 10 / Redmi 10 2022 / Redmi 10 Prime / Redmi 10 Prime 2022 / Redmi Note 11 4G
Redmi 12C / POCO C55
Redmi 12

Fill in your values in config.txt and run mtk_imei.cmd. A flashable imei_repair.zip will be generated in out folder.
Backup NVRAM and NVDATA partitions.
Flash imei_repair.zip in TWRP and reboot your phone.

Restore NVRAM and NVDATA partitions from backup.
Mount Vendor partition and delete /vendor/etc/init/md_patcher.rc and /vendor/lib/modules/md_patcher.ko files.

The bootloader cannot be locked if you use this.
The generated zip is also a Magisk module. It is installed automatically for devices with read-only dynamic partitions. Make sure your recovery can mount the internal storage before flashing the zip.
If you don't want to use Magisk, make sure your system partitions can be mounted read-write (use RO2RW for devices with dynamic partitions).
The flashable supports both stock and custom ROMs. You have to flash it again after you clean flash or update your ROM.
If nothing works, try setting imei_1 to 000000000000000 (use imei_2 for your real IMEI).