In case accidentally "upgrade" Iphone4 to iOS 4.0.2, use following procedure to recover it back to 4.0.1.
a) download iOS 4.0.1 from http://tinyurl.com/38rlu54
b) power-off phone, plug to PC, press and hold "home"+"power" till iTune recognizes it
c) select iOS 4.0.1 file with "shift" key on PC keyboard
d) iTune will verify the firmware and and recover iphone4 with it
Wa La~ you are all set~
1 comment:
Apple already blocked the SHSH for 4.0.1. In case there is no 4.0.1 SHSH backup previously (via Cydia or locally), there is no way to downgrade.
Post a Comment