I'm trying to downgrade my Galaxy S4 (I9505) to 4.3 stock ROM (XXUEML6) via custom recovery. I have flashed the pre-rooted ROM, XXUEML6 WiFi-FIX and Modem. Boots and runs very well (better than KitKat), WiFi works too, but the problem is that I can't find a way to get sound working!
I have tried to flash WiFi-FIX and Modem 3 more times, nothing changed. What can I do? Maybe I have to change kernel? If so, which one I have to use?
Thanks to all