Just got the ip4 32gb, Check at the "About" of the phone, it showed 29gb but when I plugged in to Itunes, the Itunes report 14gb ??? (confused!!!)
Then I run the tinyumbrella to shave the SHSH then load Pwnage tool, Click on DFU mod. then open itunes with the tinyumbrella server running, I selected the custom ipsw 4.2.1 firmware and restore. Everything went thru just fine no error to the end when itune finished restore with the msg device has restored to factory setting etc ... restart device(8 seconds count down)
At this point the device restart but never come back at all (black screen. After the msg count down from itunes disappeared then it popup another window msg telling that the Iphone still under recovery mode, restore the device.
I try again 3 times but no luck. Now it stuck on recovery mode (black screen)
please help me
Did you use tinyumbrella to try to kick it out of recovery mode? I don't know why but sometime I have to completely close tinyumbrella after I restore, have it detect my phone again and then kick it out. It doesn't work if I do it straight after the restore. Anyway hope that helps! Good luck