
I got successfully installed Khmer Unicode on my Galaxy S2 (Android 2.3.6) without rooting system but Khmer character is not well rendering that needs a bit more patient to wait for Android upgrade.
Phone Spec. & Font Setting
UPDATED: 21/05/21
Below solution is applied for...

Open Cydia and tap on
Manage
Sources
Edit
Add
Write this address in the pop up box
reak.host.org/bt/
Tap on Add Source
Now just wait for Cydia to update the source
After done, go open Reak sources as indicated by the Khmer...