I have a C12 phone that seems to go completely deaf for a few days and then
recovers.

I actually have two of these phones and the other one, even in the same
location, shows a good signal strength so the signal is there.

5 days ago I noticed the 'deaf' phone had lost its connection to o2, so I
tried to re-register and tried turning off and on again all to no effect.
(After entering the PIN code the aerial symbol came up on the display but
there were no signal strength bars showing and registration failed - no BT
welcome message - just blank display apart from the clock).

I tried swapping the aerials between the two phones but to no effect.

I had an Italian SIM from Wind that I knew worked in the phone and had
previously tried when the phone was working and in t5he UK reistered itself
to the Vodaphone network in the UK. This gave the same blank screen as the
o2 SIM.

I tried the phone many times (at least 30) over the next 4 days to no avail.

Thinking it could be an intermittant contact fault somewhere in the phone, I
tried cooling it in the frig. and also warming it up in the airing cupboard.
Still no joy!

Deciding that as nothing was working so far, I would call o2, and if they
agreed it was not a SIM or service problem, I would have to open it up to
investigate further. ONE LAST TRY before phoning o2 and SURPRISE, SURPRISE
there were the three signal sterngth bars after I had entered my PIN number.
It tried to register but the bars started diminishing 3,2,1,0 and failed.
Not to worry - dash upstairs - turn on again and success, it registers. I
notice that the bars start reducing again but find that if I make a call
they immediately revert to full signal strength.

I phone o2 anyway and apart from saying that he has noticed on his phone the
perking up of the signal strength when he makes a call agrees that it seems
to be a phone hardware problem and nothing to do with location as my other
phone works OK.

Well, the phone has been logged in now for 6 hours and I have made 3 calls
with it, the only thing is how reliable is it?

Anyone out there who knows a lot about the workings of these things suggest
what could be wrong with it....or is this normal behavior?


Peter