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Launched in spring of 2014, the OnePlus One packs a 5.5" display and runs the Android-based CyanogenMod 12S operating system. Model "ONE A0001."

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Help figuring out what part should I be replacing

The USB data connection on my OnePlus One stopped working.

This means that no connection is even detected on any computer.

This is not a driver issue as the computer doesn't even notice anything has plugged in.

It's not a software/ROM issue because the same applies to fastboot mode and recovery mode - no data connection.

More facts:

1) When plugging to a computer USB port - the battery icon shows the charging (lightning) symbol for a half a second and disappears and it won't charge. The computer, of course, doesn't see a usb device plugged.

2) When connecting to an AC charger - it charges just fine.

3) I already tried replacing the dock connector and flat cable unit - did not solve the issue.

Any insight on this will be greatly appreciated!

Thanks

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Have you tried to use a different usb cable for the computer? Your current cable may be damaged which could cause this problem. Have you tried plugging it in a different computer? The fact the ac charger works leads me to believe that the usb cable you have is faulty or possibly the usb ports on your computer. I would try a different usb cable first. I had to fix my usb cable a few weeks ago as I was having the same problem. Three out of four wires on my cable had to be resoldered to the micro usb connection. After fixing the cable I have no issues at all.

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I tried different cables and different computers. It's not the cable. The cable works on a different OnePlus One phone.

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