I have a k850i branded to 3 UK.

Software info:
R1CA029 prg12004399_HUTCHISON_SO R1CA029

That might help ^, i have inserted my o2 sim card and downloaded mms/web settings but it will not send/recieve mms messages, is it because its branded 3 firmware ? does anybody know if there is a firmware out that will debrand my k850i ? and the best way to do it.

Thanks.