Yes I know this has been posted before!!
Ok Girls & Boys ...before you go voting cold REMEMBER this unlocks the Omnia for less than a fiver!!
Most Networks/ Online services charge upwards of £15 with Online services producing at best erratic results. Enter the I-Smart Sim again. Works a treat. Even allowed me to update the firmware to the latest ( October) version (DTHJ5)
After upgrading to the Omnia 16Gb PAYG, Orange refuse to provide an unlock code for at least 3 months