Ok I have an 8120 on Orange, which kept going straight to call failed, I rang them they said it was blcklisted due to it not being registered. I registered it and topped up and hey presto its fine.
I bought an unlock code and got three sent one worked and said code successful i put my O2 card in and it shows as O2 with full signal bars, howeve3r it does the call failed thing again but i unlocked it, any ideas?
Also if i do get ti to work how do i get it to update to an O2 firmware as it always seems to go to orange firmware
