Author Options:

How to repair the USB Port of the laptop? Answered

Plastic Din (having grooves for pins on it) of the USB port of my laptop has come out.
How can I fix it?
FYI, it got stuck in the USB port (male) of the cable while pulling it out after use. I have somehow taken out the plastic din from the cable. Now I do not want to simply insert it in the USB port of the laptop since it will get stuck in the USB cable again when I use it next time. I need help to fix it properly.



2 years ago

Man, that sucks! If it's old or otherwise no longer has no longer has warranty and you are brave, pull the laptop apart and figure out what kind of USB male connector you need.(make sure to take out the battery and disconnect the power supply). The replacement part will probably look like one of the links below:

Through hole verison: http://www.amazon.com/UCTOP-USB2-0-Mounting-Socket...

Or the SMD version: http://www.amazon.com/Straight-Solder-Type-Female-...

While inside, why not also explore upgrading some parts? Figure out what RAM it uses and if it can be upgraded. Call up the manufacturer and ask what's what is the maximum and fastest RAM it supports. You can also consider upgrading the hard drive disk with a SSD. However, keep in mind if you replace the HDD, you'll need to install an OS to the new SSD. (there are many online guides that lead you through that process.) and you will need to get one of those USB to SATA cables to transfer data from the old HDD if you kept important things on that laptop. Then you could just use that old HDD as a craptacular external HDD backup solution! :)

Once all your replacement parts arrive, go ahead and desolder the old connector and pins, use a solder sucker or solder wick to clean away the old solder, and solder the new one in place. Before installing the upgrades, go ahead and put the laptop together enough and try to turn it on. See if it will work. If all seems OK, go ahead and turn everything off and disconnect the battery and power, and replace the RAM and SSD if you got that. If you just replaced the RAM, the laptop should still work like nothing was changed. However if you put a SSD into it, If you try to turn the computer on, you will probably get stuck at a black screen that says "FATAL ERROR: No bootable media devices found" or something along those lines. This is when you install the OS you want.

Removing devices from a multilayer board, especially a device with heavy pins often through hole as well as very small surface mount pins sometimes is difficult for an expert, suggesting it to an amateur is a recipe for disaster.....

Good point, I thought I added more of a disclaimer at the top. I do tend to overestimate others' soldering skills as I learned how to solder really quickly when I was young. I don't see this being way too difficult with the correct tools, but its been awhile since I used a $10 iron.

So as a suggestion to OP: If you choose to take a risk destroying the motherboard, get a decent soldering iron either with good thermal mass or a cheap temperature controlled iron. There are some decent temp controlled hakko irons on amazon for about $60 or so, or you could get one of those cheap hakko 936 clone ripoff irons) I recommend ausing a solder sucker for the majority of the solder and good quality solder wick with some extra flux to get as much off as possible.

I have done a few of these and where a replacement was no option I used 2K glue for the fix.
Problem is that some plastics won't even bond properly with 2K glue and that you can only use a tiny amount of glue.
I used an old and broken USB cable as a "mounting" clamp to keep everything in place.
The trick is to find a way to apply the glue and put the plastic back without getting ANY glue onto the flexible contacts - hence I prefer the replacement.
I most cases the front bit of this plastic has the contacts already far away from the glue area - still too much glue here means the contacs might not be able to move far enough down when you plug something in.
And sometimes you are lucky enough that the plastic goes all the way to the back of the connector and you can apply some more glue from the outside.

If you are confident you have the means and skill to tackle this then go for it, otherwise just take it to rapair shop and have it fixed properly.

That's why it's not worth my time. Glue just doesn't work with most plastics. Oh..it works for a week, or maybe even a month, but then suddenly the joint fails. A proper repair means having the receptacle replaced.

That looks like the plastic tongue that
keep the actual pins stable. If you look inside the USB port, you should
see 4 metal pins in the middle. Don't bend them! If the wrong one
touches the shield, it will short the 5V.

Repair? Not easy. If
you don't need the USB port, fill it with hot glue. If you need it, the
port may be replaced, but that means you'll have to get the main board
out of the laptop, find an exact replacement (foot print wise), unsolder
the broken one and resolder the new one - which might be tricky
depending on the layout and without SMD equipment. As seadogue said: a
task for the professionals.

Take it to a computer repair shop. I'm an electrical engineer and have been making stuff for decades and wouldn't touch that repair on my own. It sounds like the receptacle needs to be replaced.