im having trouble with my W800i, ive put a Vodafone sim in it, and it wont allow calls, but for the past 2 weeks its allowed sms messages, but suddenly, about an hour ago i could no longer send sms messages, i keep getting the error 'Sending Failed, Unknown Recipient'
ive check 2 seperate sites and the IMEI number appears to be ok!
any ideas?
i have the same problem its a w850i and it was on "3" then got it unblocked to Vodafone
and the same think is happining to me but i can still text people and they can rext me back
i carnt Ring or be Rang by other people