how to change supported language with A2 models?

[mingkee]

you will then need to delete the lng.lst and lng.dat files that are also in the tpa/preset/system/language directory. (the phone should rewrite these with the new languages when you restart it)

these 2 files do not exist in A2 models (TM506 and W760)

[pampi]

these 2 files do not exist in A2 models (TM506 and W760)

Try then to look around in tpa/preset and look for existing languages!