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You can downgrade an iPhone 3G. Firmware signing started with the 3GS (and IIRC, that one was cracked, only the iPhone 4 and later firmware signing works as in
by beagle3 10y ago
You can downgrade an iPhone 3G. Firmware signing started with the 3GS (and IIRC, that one was cracked, only the iPhone 4 and later firmware signing works as intended)
I downgraded my 3G. Google "whited00r'