Samsung i9300 strange problem

[Unicom]

Hi, got this i9300 some times call goes ok but most of the time can't hear any thing. Did the upgrade and hard reset but when i make a call got this click sound and can't hear any thing. Opened the set and cleaned all the parts including ribbon and mic speaker but same thing. Any idea how to solve this?
Thanks

[.::EXTREME::.]

some times call goes ok but most of the time

is this a network problem???

check when calling if N/w signel drops....

most of the time can't hear any thing

you mean speaker {ear piece}?

or mic and speaker? { cant hear both ways?}

Opened the set and cleaned all the parts including ribbon and mic speaker but same thing.

have you checked by replacing ear piece?


Is that a water logged fone? if so check Hf jack or usb connector.