PostmarketOS for Xiaomi Angelican (Redmi 9C NFC)

This port also might work on angelica (without NFC) and other phones on MT6765 processors (like Redmi 9A).

Roadmap

• Kernel compiling
• Kernel booting
• PMOS booting
• ...

How to install

git clone https://github.com/MeexReay/pmos-xiaomi-angelican.git
cd pmos-xiaomi-angelican
source extract-paths.sh
ln -s $PWD/linux-xiaomi-angelican $PMAPORTS/device/testing
ln -s $PWD/device-xiaomi-angelican $PMAPORTS/device/testing

How to flash

Firstly, you need to unlock bootloader (See section below).

Flash with prebuilt images

Enter fastboot mode (hold vol- and pwr buttons while turned off), and run this commands:

cd prebuilt
./install.sh

Flash manually

1. Build images

pmbootstrap init
pmbootstrap install

2. Disable VerifiedBoot and flash boot partition

Enter fastboot mode (hold vol- and pwr buttons while turned off), and run this commands:

fastboot flash vbmeta prebuilt/vbmeta_disabled.img
fastboot flash vbmeta_system prebuilt/vbmeta_disabled.img
fastboot flash vbmeta_vendor prebuilt/vbmeta_disabled.img
pmbootstrap flasher flash_kernel

3. Flash system

fastboot reboot fastboot # enter fastbootd mode
fastboot delete-logical-partition product # make system partition bigger
pmbootstrap flasher flash_rootfs # flash system

How to flash stock firmware

It is recommended to flash stock firmware before doing anything.

Download Firmware and unpack it

Windows

1. Download MiFlashTool
2. Unpack firmware.tgz to some folder and copy its path
3. Launch MiFlash.exe and paste the path of firmware folder to that lonely input entry
4. Click refresh, then flash button
5. That's all, close the window

Linux/MacOS

Install Windows and follow the guide above

TODO: Write how to do that on linux

How to unlock bootloader

Drivers

Windows

Install usb drivers:

• https://mtkdriver.com/
• https://github.com/daynix/usbdk/releases

Linux/MacOS

TODO: write about usb drivers, but they seem to be preinstalled

Unlocking

git clone https://github.com/bkerler/mtkclient
cd mtkclient
pip -r install requirements.txt
git clone https://github.com/coloredmarble/redmi_9a_mtkclient
cp redmi_9a_mtkclient/* .
python mtk.py da seccfg unlock --preload preloader_k62v1_64_bsp.bin --loader n.bin
# power off phone, hold vol+ and vol- at same time and connect usb cable
# i did it with test point, but it isnt required

See also

• xiaomi angelican wiki
• mtkclient
• ubuntu touch installation
• booting troubleshooting
• coloredmarble/redmi_blossom
• xiaomi angelica wiki
• xiaomi dandelion wiki

Contacts

If you want to develop it together, or maybe you have working port, please write me in discord: @meexreay. Also you can find more about me on my site: meex.lol

Contributing

If you would like to contribute to the project, feel free to fork the repository and submit a pull request.