Dunno is SETool Lite will flash this phone, and 99% sure you can't patch it with free software either.
SETool full can debrand and unlock these fairly easily though. I'll have a butchers for further info, but almost sure that this is one for either an unlock shop, or commercial code.
The codes cost me 9 euro each wholesale. If you can't get it unlocked anywhere near to you, or there is no free software (fairly sure there isn't) I can do you a code for a £9 via paypal.
Hopefully this isn't classed as selling. After paypal fees it works out to be around £9...None profit making I'd say.