How to fix error 1600 when restoring 3G iPhone to iOS 4 Custom Firmware
There are alot of tutorial on how to fix this error
1. Using Libusb iReb
2. Removing ipsw file from iTunes directory
And many more....
But all those are just not working..
The only way to avoid or fix it is
1. If you currently have any firmware other than 3.1.2, you have to restore your iPhone 3G to this firmware. Which means if you are 3.1.3, please downgrade it ( put your device in DFU mode then restore to 3.1.2 )
2. Jailbreak your 3.1.2 iPhone with Blackra1n then unlock it
3. Then put it on DFU mode WITH PWNAGE TOOL ( means you have to put iPhone on DFU Mode using Pwanage tool, not with your own) and restore to iOS 4 custom firmware..
This technique is guaranteeed 100% success....
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