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Mid 2009 Model A1278 / 2.26 or 2.53 GHz Core 2 Duo processor EMC 2326

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usb ports are not working properly if usb pen inserted completely

when inserting mouse or external memory sticks, they are not spotted. If I take it ot just a little, they are spotted and working. the problem is that if I move the laptop, then the connection is lost.

how can I fix it?

Update (11/02/2021)

Coudn’i it be that the pins need just to be pushed a little bit so that the contact between port and jack is more stable?

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Are you encountering issues on just one port or both?

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to both of them. !

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Your system only has USB 2.0 (480 MBit/s) by chance are you plugging in a USB 3.0 (4.8 Gbit/s) {also called USB 3.1 just to confuse you!} Cable/device?

One of the issues between 2.0 and 3.0 is a set of extra pins in it connection!

Block Image

See if a USB 2.0 cable/device works. I’m suspecting the extra pins are shorting out when you push the cable in.

Reference: 5 Fast Ways To Find Different Between The USB 2.0 And USB 3.0

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Thanks Dan. However the problem is happening with an external hard disk that was working perfectly till a few days ago (same thing for a mouse). So I do not think is a USB 2.0 vs a USB 3.0 issue…

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@stefanochi - If that's the case your logic board will need repairs as the ports are port of it and the logic within it might be messed up.

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Coudn’i it be that the pins need just to be pushed a little bit so that the contact between port and jack is more stable?

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@stefanochi - A bent pin which is shorting is what I was thinking at the start but if both ports are having problems that tells me its either a bad cable or something deeper.

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Cables are OK because are working properly on other pc's

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