I have a very serious problem. Recently I have been flashing a lot of ROMs on my phone but I did not like any of the custom ROMs as there wasnt any good ones as I actually liked the apps that came with the stock ROM. So I decided to go back to stock ROM but i found it really hard to find the stock ROMs and after a while of searching I found a stock ROM where i have to flash with ODIN. The file came with four files which I had to flash with ODIN v3.09. It came with files that I had to put into the AP, BL, CP and CSC. I did that but then it failed, then retried without the BL because it kept making it fail and it flashed perfectly but then I noticed that there wasn't any sound what so ever. Any app that uses the speakers would crash, even trying to call someone. Even the microphone did not work. When i went onto S Voice it would say that another app was using the microphone when it wasnt and when i tried playing music it would say that file is not supported by the player and keep going to the next one when it was supported before the flash. So I got really worried and decided to go back to the google edition 4.4.2 ROM that i flashed before but now after I flashed that, there wasnt any sound even though there was sound on that ROM when i used it before. I dont know what i did wrong and what i can do to fix this problem or is it even repairable. I checked some other threads and they said to flash stock ROM with odin with the pit files it will work again but im not sure which stock rom should i flash or what to do exactly because i have flashed so many ROMs already and the problem still remains.