I use my 3650 with a voice only sim card provided by my company. I have tried to use my phone with an orange (UK) pay as you go card but impossible to use mms it keeps saying wrong access point parameters. but other nokia phone works with the sim card and the same parameters, not 3650 so. I know that 3650 is not registered yet with orange but went to see in a nokia shop and the guy couldn't understand why it was not working. Is someone using 3650 on pay as you go orange?if yes could he send me the parameters he uses. Or have some of you experience impossibility of sending MMS?