Prior to jailbreaking my 4.2.1 device using Greenpois0n, I connected my IP4 to iTunes and did a backup.
I understand that you can use gmail sync, mobileme etc to automatically sync contacts but I would like to know if you can simply back up the following folder instead:
var/mobile/library/AddressBook
..and copy it back if I needed to do a restore /setup as a new device via iTunes?
If I did a restore from a backup via iTunes, does it completely wipe the phone, remove jailbreak and associated files?
Also does it get restored with the same firmware /baseband or is it automatically updated?
I understand that you can use gmail sync, mobileme etc to automatically sync contacts but I would like to know if you can simply back up the following folder instead:
var/mobile/library/AddressBook
..and copy it back if I needed to do a restore /setup as a new device via iTunes?
If I did a restore from a backup via iTunes, does it completely wipe the phone, remove jailbreak and associated files?
Also does it get restored with the same firmware /baseband or is it automatically updated?