I don't have any sound from my loud speaker in my S2, and the microphone is not working either.
I can only hear sound/use a mic when I connect an earphone (mic working is the earphones' mic).
I replaced these parts with new ones:
- earpiece speaker flex cable ribbon
- Loud Speaker Ringer Buzzer
- USB dock port flex cable (since the mic is in this part)
I'm pretty certain it is not software-related issue since I installed many roms since, and I even got back to stock, but it won't change anything.
What do you guys think? Any way I can resolve this issue?