Originally Posted by neil7398
Recently I have been trying to no avail to flash a rooted version of Kit Kat on my S4. I finally was able to get back to MK2 but I ended up not having any sound and my phone would not work. I took the update from AT&T and that upgraded me to 4.4.2 and got my sound back.
What do you think caused me to lose my sound and phone use? Did I flash an incorrect file?
You probably flashed the MK2 modem and NON-HLOS file. It is known that this kills sound, that's why the specific downgrade method doesn't use the ODIN CP file which contains them.
Sent from my SGH-I337 running BlackBox 3.0
Current Device: ATT Samsung Galaxy S4 (i337)
Droid Bionic (GSM Hacked)
HTC Inspire 4G (Desire HD)
HTC Dev Phone 1 (Dream/G1)