I have bought and unlocked an Orange-branded Nokia 6301 handset, and it seems that the Wi-fi and Email functions are tied to the Orange configuration settings (in Settings> Configuration). You can add O2 configuration settings, but they only seem to be applied to MMM and Web browsing, not the other functions, which remain 'tied to' the Orange config. settings, which of course I cannot use as I am on O2.
This in effect makes the phone pretty useless, I have tried updating the firmware (with same version as was on latest), but the Firmware Updater in the PC Suite seems to be wise to the branding - it updates with the same network firmware that the phone was on before (not the SIM card one).
I have also read elsewhere that the Wifi only works on Orange if the phone is Orange-branded, so I suspect I might have a problem here unless I can overwrite the firmware with a non-Orange/O2 version - can anyone advise how to do this, or how else to solve the above problem? Even getting the email working would be great...