Tecno Camon 20 Pro

Tecno Camon 20 Pro

also known as TECNO CK7n

Works fine as expected, however, there are some flaws when using custom ROMs:

• Project Elixir does not boot successfully when B slot is only flashed
• SIM networks are unable to get coverage on some GSI builds (LineageOS)

Tested with crDroid, EvoX, LineageOS, and Project Elixir (Android 13 & 14)

Steps to install

• Enable OEM unlock in Developer options then unlock the bootloader

• Reboot into fastboot mode:

  $ adb reboot fastboot
  

• Re-flash the stock vbmeta.img with verification disabled:

  $ fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
  

• Ensure the device is using the A slot, if not, do:

  $ fastboot --set-active=a
  

• Delete logical partitions used by the stock ROM to free some space:

  $ fastboot delete-logical-partition product_a
  $ fastboot delete-logical-partition system_ext_a
  

• Flash the system image with the GSI build you want to put on:

  $ fastboot flash system gsi.img
  

  As an alternative you can flash via TWRP as "System Image" and format data.

Hardware support

Component	Comment
Camera	Working
Speaker / Mic	Working
Bluetooth	Working
WiFi	Working
SIM / Mobile Data / Voice	Partially Working
VoLTE	Working
Fingerprint	Not Working
NFC	Working
Fast Charging	Working
Offline Charging	Working

---

Tweaks

Enable VoLTE

Go to Settings -> Phh Treble Settings -> Misc -> Install IMS APK for MediaTek S Vendor then reboot

Tested By: spir0th - TECNO Camon 20 Pro (CK7n-GL), CK7n-H894ABC-T-GL-240218V2320 - Last edited on 03/23/24 - Template created by @zguithues and @hackintosh5