Tecno Camon 20 Pro - TrebleDroid/treble_experimentations GitHub Wiki

Tecno Camon 20 Pro

also known as TECNO Camon 20 Pro 4G and TECNO CK7n

Most GSIs work fine as expected.

Tested with crDroid (A13), Evolution X (A13/A14), LineageOS (A14), and Project Elixir (A13)

Steps to install

  • Enable OEM unlock in Developer options then unlock the bootloader

    • If your TECNO ID has been recently created, you may have to wait for a week to enable OEM unlock.

  • Reboot into bootloader mode:

    $ adb reboot bootloader

  • 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

  • Reboot into fastboot mode:

    $ fastboot reboot fastboot

  • Delete logical partitions used by the stock ROM to free 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 Working
VoLTE Working (requires extra setup; read tweaks for this)
Face Unlock Partially working
Fingerprint Not working
NFC Working
Fast Charging Working
Offline Charging Working

Tweaks

Enable VoLTE support

Using VoLTE actually requires extra steps to be fully enabled:

  • Head over to Phh Treble Settings
  • Look for IMS-related options (they can be either inside the Misc or IMS features sections)
  • Once found, tap the Install IMS APK for MediaTek R+ Vendor option, install it as a normal user would
  • After installing the IMS APK, tap Create IMS APN and Request IMS network options

That's it! Perform a system reboot then VoLTE would work.

If VoLTE still does not work, the last resort is to enable the last option, Force the presence of 4G Calling setting.

GSI overlays

Install this Magisk module to correct System UI configuration, power profile, and etc.

Tested By: borfei - TECNO Camon 20 Pro (CK7n-GL), CK7n-H894ABC-T-GL-240218V2320 - Last edited on 10/3/25 - Template created by @zguithues and @hackintosh5