On my two Moto V365's, lately evyr few days they stop working and disply "unregistered SIM". I shut it off, remove battery and SIM, and re-install - problem went away on my wife's for at least a few weeks now but mine reocurrs every few days. THese are legit fones, on Cingular/AT&T.
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Select "Activate Phone" from our website and follow the instructions to
Activate your TracFone.
Why does my phone display "SIM card registration failed/Unregistered SIM" or
When your TracFone is turned on you may receive the message "SIM card
registration failed", "Unregistered SIM", or "No Service" because your phone has
not yet been Activated. Please disregard this message, it will disappear once
your phone is Active.
is it an unlocked phone?
The "Unregistered SIM" message means that you're using a SIM card for which this phone is not intended. You will need to have the phone unlocked and it should work.
If it is a new fone thenPhones are not shipped activated. You should look in the box for activation instructions. Read and follow them. is that a prepaid sim then probably the sim has been deactivated...