Just a quick question: my iphone 4 is currently running 4.1 jailbroken with limera1n. I would like to upgrade to 4.2.1 and jb with Greenpois0n r5 so that I can keep accessing the filesystem.
AFAIK, I have to upgrade to 4.2.1 via iTunes and then run Greenpois0n.
Will that have any problems with the previous limera1n jailbreak? Most importantly, do I have to do a full phone restore when upgrading? I really don't want to lose all the apps I have and their settings.