I've had a good search of the forums and couldn't find an answer to this, although I'd have thought it'd be in there somewhere - sorry if I'm repeat posting!
I bought an 8300 curve (on o2 UK) off ebay... It all boots up fine, finds the network ok, allows me to browse all of the menus BUT it won't actually make or receive calls. It shows O2 as the network provider, and also shows full signal, but just comes up "call failed" as soon as I hit the green key after dialling a number. When calling to my number (which works fine on another handset) from another phone, it also fails.
Have I bought a phone which has been blocked? Or have a just missed a step in the setup?
If it's blocked, am I correct in thinking that there's nothing I could do about it? If I was to network-unlock it, could I use my Orange sim in it?
Thanks for your help