Quick question ..

Father has a 1.1.4 unlocked / jailbroken phone, he is on o2 pay and go. Question is if I downgrade to phone to 1.1.2 will he be able to enter the edge settings (this option is not visible on 1.1.4 with a O2 SIM)

Also, if I do this is the process as simple as just downloading 1.1.2 and restoring the phone