How to install Khmer Unicode on your iPhone, iPad and iPod iOS 7.1 without jailbreaking your idevice
1. Copy this link: 4khmeriphone.com/ios7 or click here
2. Paste it on Safari and click Go
3. Choose OK for Nokora Font and choose Cancel for Battambang Font.
4. When the installation appear, Click Install
5. Click Install Now
Now you can read Khmer on Facebook, Twitter and other Apps like Note, Calendar…. But you CANNOT read Khmer on SAFARI
IF you CANNOT read Khmer on Facebook or other Apps. Please refresh the apps. If it still does not display Khmer font correctly, then Remove the font profile in Setting > General > Profiles> Remove; and then reinstall the font by following above instructions.
Courtesy: 4khmeriphone Team