Download here many software to get Arabic keyboard to typing on the HTC Desire 4G LTE ADR6410L (HTC Fireball).
1. Yoolki Arabic Keyboard – Firefox Addon on HTC Desire 4G LTE ADR6410L (HTC Fireball). Just open right click any text field and select "Write Arabic here" to write in Arabic using an English keyboard. The add-on can transliterate your English letters (ex: akala el waladou el touffA7ah to أَكَلَ الوَلَدُ التُفاحَة) or translate English to Arabic using Google translate. (ex: The boy ate the apple). Here this link :
http://supportscentre.com/free-download-yoolki-arabic-keyboard-firefox-addon-for-android.html
Note : You must have software requirement for addon : Fire fox mobile
2. Download here Arabic Language Pack for AnySoftKeyboard HTC Desire 4G LTE ADR6410L (HTC Fireball). Here this link :
http://supportscentre.com/arabic-language-pack-for-anysoftkeyboard-version-20110127.html
3. Download Arabic soft Keyboard for HTC Desire 4G LTE ADR6410L (HTC Fireball) Smartphone. Here this link :
http://supportscentre.com/arabic-soft-keyboard-abdullah-bahitham.html
4. Or find out more application from google play (android market) :
https://play.google.com/store/search?q=arabic+keyboard&c=apps
