Im on TW rom, so just let you now.
Do or not your phone your choic:pe.
[MOD] Speaker / Headset Boost for AOSP/CM/PA/AOKP build
on 02/10/2013 – Made popular on 02/10/2013
I currently have the Samsung Galaxy S4 - MF3; v4.2.2; i337. I got the phone unlocked (direct from AT&T); and then
1. followed this method to root my phone - http://forum.xda-developers.com/show....php?t=2387577- Worked.
2. Got Safestrap v3.65 - http://blog.hash-of-codes.com/downloads/safestrap/ - Worked.
3. Tried 3-4 different ROMs, none of them have worked.