How-to Fix An Unknown Error (1603) while updating iPhone firmware.

The iPhone “iPhone” could not be restored. An unknown error occurred (1603).
Fix 1603 Unknown Error by following these steps:
[click to continue…]
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How-to Fix An Unknown Error (1603) while updating iPhone firmware.

The iPhone “iPhone” could not be restored. An unknown error occurred (1603).
Fix 1603 Unknown Error by following these steps:
[click to continue…]
Also read: Top 10 Must Have Cydia Tweaks for iPhone, iPad, iPod touch
How-to Fix An Unknown Error (1601) while restoring iPhone custom firmware iOS 4.2.1.

The iPhone “iPhone” could not be restored. An unknown error occurred (1601).
Fix 1601 Unknown Error by following these steps:
[click to continue…]
Also read: Top 10 Must Have Cydia Tweaks for iPhone, iPad, iPod touch
How-to Fix An Unknown Error (1600) while restoring iPhone custom firmware iOS 4.2.1.

The iPhone “iPhone” could not be restored. An unknown error occurred (1600).
Fix 1600 Unknown Error by following these steps:
[click to continue…]
iReb will put your iPhone (also other iDevices) into a pwned (jailbreakable) state so that you can upload custom firmware to it.
It can be used to fix unknown error 1600, 1601, 1602, 1603, 1604, etc.

Download iREB RC4:
[click to continue…]
Also read: Top 10 Must Have Cydia Tweaks for iPhone, iPad, iPod touch
iReb will put your iPhone (also other iDevices) into a pwned (jailbreakable) state so that you can upload custom firmware to it.
It can be used to fix unknown error 1600, 1601, 1602, 1603, 1604, etc.

Download iREB RC3:
[click to continue…]
iReb is a tool (created by iH8sn0w. ) for Windows® that will put your device into a pwned (jailbreakable) state so that you can upload custom firmware to it.

How does it work?
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