This is made because cs-x stopped posting here and many people have problems registering or downloading from 4pda.
All credits go to cs-x, he made it all possible.
Original topics for all info and support:
[MOD][MCU] cs-x Mod MTCB/C MCU firmware (SoundPatched)
[MOD][MCU] cs-x Mod MTCD/E MCU firmware (SoundPatched)
You can find all files on this link.
I will upload new files when posted on 4pda and make post with updated file name.
Old files will be left in downloads in case anyone needs.
Please be careful which file you need for your unit.
I am not responsible for anything that may happen to your unit by flashing the mod image.
You do it at your own risk and take the responsibility upon yourself.