How to install Android Jelly Bean 4.1.2 XXLS7 Modem XXLS3? It's missing from the leaked stock XXLS7...
Download Modem XXLS3 here. XXLS3 modem flash-able via CWM Recovery. Phone's cellular radio and its supposed to give you better reception.
Tested. You could run Jelly Bean Keyboard 4.2. Download Jelly Bean 4.2 Keyboard APK here