Revamped version of the iPhone 3G with faster processing speeds. Repair of this device is similar to the 3G, and requires simple screwdrivers and prying tools. Model A1303 / 16 or 32 GB capacity / black or white plastic back.

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Getting an unknown error 9. Can't restore the OS.

Hi, I have a week 38 iPhone 3GS jailbroken by blackra1n. Pherhaps it's because I uninstalled a software not so properly. After that, it began the white apple loop. And every time I restored it, it gave the unknown error 9 out... whether in DFU or restore mode. I've changed USB ports, computers, Macs, systems... Same thing. Some are saying it's a hardware problem, probably the flash drive. Has anyone suffered this before? I appreciate for any of your help. Thanks a lot.

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Hello, i have the same problem. It is working with? Finally you could fix it?

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I tried everything, did a lot of research, then finally went to the Apple store and they tried everything. The result: my iphone is now an iBrick. This sucks, my 2nd Apple device to die just after a year old. Not getting another.

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Chosen Solution

Try this:

Step 1. Turn off iPhone

Step 2. Hold down the power and home button.

Step 3. When you see the Apple logo, release the power button but continue holding the home button down.

Step 4. Open iTunes and wait for it to tell you that it’s in restore mode.

Alternative Method:

Step 1. Connect iPhone to USB then listen to the sound when it connects and disconnects.

Step 2. Hold the home and power buttons until you hear the disconnect sound then release the power button.

Step 3. Wait until you hear another sound then release home button.

This is DFU mode. Hope this helps.

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What's DFU?

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Device Firmware Upgrade, it's just a fancy term for restore.

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Thanks +

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Yuan Jiang will be eternally grateful.
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