iPhone 2.0 1601, 1602, 1604 error help

Okay. I spent all day trying to upgrade the old iPhone to the new 2.0 firmware. Now…I uninstalled iTunes, reinstalled iTunes, it didn’t make any difference. So here’s a handy tip to save you time.

Unplug ALL USB devices except your iPhone. If you have a computer with a USB port in the front, use a USB port in the back.

As soon as I did this I was able to upgrade immediately.

Hope this helps.

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