Sigmatel S4 handsfree problem ,PLs Help Me [Archive]

sachin3

03-10-2009, 08:43

tkowsar

03-10-2009, 11:45

I HAve Problem With My Sigmatel S4,
When I Connect Handsfree , The Set Will Shut Down Auto mAticaly ,
When I Connect HandsfreeFree In Set Off Condition The Set Will Be Power On ..
:(:confused::confused::(:confused::eek::(:confused ::(:confused:

some of headphone is shorted, so first try to change head phone.

if all are give you same result, now try to change phone headphone/hands free connector.

if there also still same problem, now check resistor, capacitor or other components near hands free socket, which is directly connected to socket.

all of this solution is primary stage, if not done after all of this, next try to change, audio ic, power ic and cpu step by step