Redmi 5Plus

ORIGIN Link

Setup 1 unlock bootloader

Reference: https://www.miui.com/unlock/index.html Notice:

  • miflush_unlock requires a windows os
  • If the unlock tool does not recognize the phone, you need to install the driver manually in the device manager, select the path miflush_unlock/driver.
  1. Download Xiaomi Official Unlock Tool (miflush_unlock): https://www.miui.com/unlock/download.html
  2. Run miflush_unlock.exe, login to Xiaomi account
  3. Go to "Settings -> Developer Options -> Device Unlocked Status" to bind your xiaomi account and device.
  4. Enter Bootloader mode manually (after powering off the computer, press and hold the Power On and Volume Down buttons at the same time).
  5. Connect your phone via USB and click the "Unlock" button

Setup 2 Download android sdk

https://developer.android.google.cn/tools/releases/platforms?hl=en macos can be installed using homebrew, brew install android-platform-tools

  1. Download android platform-tools
  2. Configuring Environment Variables

Setup 3 Download PostmarketOS images

https://images.postmarketos.org/bpo/v23.12/xiaomi-vince/phosh/20240327-0824/ Decompression command: xz --decompress xxx.xz

  1. 20240327-0824-postmarketOS-v23.12-phosh-22.3-xiaomi-vince-boot.img.xz
  2. 20240327-0824-postmarketOS-v23.12-phosh-22.3-xiaomi-vince-lk2nd.img.xz
  3. 20240327-0824-postmarketOS-v23.12-phosh-22.3-xiaomi-vince.img.xz

Setup 4 Write images to phone

Notice: Run fastboot devices to make sure your device is detected.

# 1. flush lk2nd 
fastboot flash boot 20240327-0824-postmarketOS-v23.12-phosh-22.3-xiaomi-vince-lk2nd.img
# 2. wait for the reboot to complete
fastboot reboot
# 3. flush boot
fastboot flash boot 20240327-0824-postmarketOS-v23.12-phosh-22.3-xiaomi-vince-boot.img
# 4. flush os
fastboot flash userdata 20240327-0824-postmarketOS-v23.12-phosh-22.3-xiaomi-vince.img
# 5. wipe the system partition
fastboot erase system
# 6. reboot
fastboot reboot

If all goes correctly, you should now be running postmarketOS! Enjoy!

Setup 5 Login your OS

username: user password: 147147 PIN Code: 147147

Finally

Replace /etc/apk/repositories with the following

http://mirrors.tuna.tsinghua.edu.cn/postmarketOS/master
http://mirrors.tuna.tsinghua.edu.cn/alpine/edge/main
http://mirrors.tuna.tsinghua.edu.cn/alpine/edge/community

Update Mirror

sudo apk update
sudo apk upgrade -a

Optimization [optional]

  1. Disable GUI:

Reduce memory usage by 700m

# disable
sudo rc-update del tinydm
sudo reboot
# enable
sudo rc-update add tinydm default
  1. Disable modemmanager

Reduce memory usage by 100m Notice: ModemManager is used to control mobile broadband (2G/3G/4G) devices and connections

# disable
sudo rc-update del modemmanager

# enable
sudo rc-update add modemmanager default
  1. Disable firewall
sudo service nftables stop
sudo rc-update del nftables
  1. Disable pulseaudio

Reduce memory usage by 700m

# disable
echo "autospawn = no" > $HOME/.config/pulse/client.conf
pkill -f pulseaudio

# enable
rm -f $HOME/.config/pulse/client.conf
sudo service pulseaudio start