QUOTE(harmeet15 @ Feb 17 2010, 06:41 PM)
its a good thing u hv the file on server thing..
now, u can go to 3.1.2, however, thr is a certain tweak u hv to do..
u can follow the
guide here..its a simple task..
once u add tat line, u hv to manually download the 312 firmware..u can find it on the first page of this thread...
then abt ur saved data..ie notes, games n all tat, b4 u restore,
go to itunes n make a backup of ur current state of the phone..once u restore to 312, u can choose to restore the backup...simple
cydia data wud be gone, so u'll hv to make it rain again n download ur cydia apps again

thanks for the reply.. before i proceed to upgrade my 3.0.1 to 3.1.2... i still hv a few questions
1) should i go tru the steps
here but at the end.. choose already pwned?
2) i can backup all my Cydia stuff with pkgBackup right?
3) in the bold words above.. i need to manually backup all those stuff in Itunes? how? or u mean i need to sync my 3Gs with my PC before i proceed to the upgrade?
things i hv now:
1) 3.1.2 firmware downloaded from the first page with the file name of iPhone2,1_3.1.2_7D11_Restore.ipsw (the one show that only for 3GS)
2) RedSnow
is there anything i miss out?