okay s i recently restored my jail broken iPhone 3 , it is working fine but i have no carrier option and no signal i have a optus Sim in there and i tried putting a 3 Sim in there but yet nothing worked ? can anyone help ?????
if the sim card is properly in it's
place - then you should read the
following ;-)
since the phone is getting a weak
signal and loses the signal within
a few seconds - i would say that
there is a problem with the
antenna area (connectors/
antenna)
if it would have full reception -
but loses the signal within 5 to
10 seconds - it would normally
be a defective power amplifier or
a broken antenna switch (most
likely the switch would die first
when a phone is dropped)
the "no service" message in
those two cases is normal(!) - the
phone receives the signal but the
bts (Base Transceiver Station)
does not recieve a signal from
the phone (something like a
handshake) - so it does not
"lock" the "cell" to the phone
and goes on - it simply doesn't
see or hear the phone - and that
was the short explanation why
you get the "no service" message
but what now ?
if there is nothing to see from
the dropping and the phone is
still under warranty - go to
apple!
if not, open the phone and
check the connector between
the dock conector ant the logic
board - maybe it's slightly
dislocated
wut you wrote that you checked
the connections - that could
mean that the antenna is
defective - but check everything
again - checking is better than
buying a new part ;-)