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IPhone's 3.1.3 firmware cause Error code 9?

Update:11-30Source: network consolidation
Trying to update my phone to 3.1.3 last night and now is throwing error code#9 in recovery mode. Try to recover from different PCs and USB ports, still no avail.
Any ideas???

The Best Answer

Error 9: This error occurs when the device unexpectedly drops off of the USB bus and communication stops. This can occur if the device is manually disconnected during the restore process. This issue can be resolved by performing USB isolation troubleshooting, using a different USB dock connector cable, trying another USB port, restoring on another computer, or by eliminating conflicts from third-party security software, as described here: .