IPhone cannot be detected on any computer

All of a sudden, my laptop refused to detect my iPhone when I plug it into the USB port. However, it could charge using the AC adaptor.
I checked the power saving function of the USB ports and it wasnt the issue.
Restated both my laptop and phone many times too.
Tried connecting on other computers but it failed as well.
Also, my computer can accept other iPhone connections, so it isn't my laptop problem.
Thx in advance for any help rendered =).
Really desperate ..

IF your IP is recognized by your netbook, it sounds like you have a bad USB port on the problem computer. I believe that ALL USB ports on a computer are daisy changed and if one is bad, they probably all are bad. I had this happen on one of my laptops a few years back. I was able to get the USB port replaced under the warrantee. IF the computer is a desktop, you might be able to add a USB card.

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IPhone cannot be detected on any computer

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