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A Bluetooth Speaker With Missing 4 Pins USB Port Repaired

By on February 11, 2023
bluetooth speaker repair








A lot of speakers were coming to my shop for repair. The strange thing is a lot of these speakers powers on fine but the USB ports are missing for some reason.

how to fix bluetooth speaker

As seen in the photo that is a 4 pins USB port broken off the board inside this speaker and the customer wants me to replace it with a new one as soon as possible.

It is the Christmas season and every place you pass by on the streets in my home town is playing Christmas songs to promote gifts selling.

how to fix a broken bluetooth speaker

It is a cool music box and I guess it is worth saving according to the customer. I believe I have the same 4 pins USB port in the shop and should be an easy task to do in a short time.

usb port replacement

The ripped USB port was rattling inside the music box and I saw a ripped pad still sticking on the old port.

port cables

I could see these ink markings on the sockets of these cables.

It seems like someone took it apart and tried to fix it.

how to fix usb port issue

If you look where the arrow is, that is the ripped pad that needs fixing as well. I scratched the trace heading to that pad and added fresh solder there with flux and I was ready to put the USB port on. I took the USB port off a donor board that I have in the shop and it was a perfect fit.

testing usb port after repair

It was soldered on with the help of flux and as always shinny solder brings joy to my face. 

mobile speaker system repair

I had some Christmas music on a flash drive. I connected to this USB port and the music was loud and clear.

Mission Accomplished.

waleed Rishmawi

This article was prepared for you by Waleed Rishmawi, one of our ‘Master Authors’ and currently working in the Bethlehem area of Palestine repairing electrical and electronic equipment.

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Note: You can check his previous article on A Flash Light That Does Not Light Up Repaired




  1. Tayo

    February 11, 2023 at 10:21 am

    Well done Waleed.
    I had a similar repair where I installed a flush mount dash mount USB Female Cable bcos I was afraid that the replacement would not hold up to future prolonged use. I widened the original slot where the original USB went, cut the male end and soldered the wires to its respective spots on the PBC. But that's bcos I happened to have a flush mount cable laying around so it worked out very well.

    • Waleed Rishmawi

      February 11, 2023 at 8:19 pm

      Tayo: good job on the repair thanks for sharing your experiences. have a blessed day and keep up the good work

  2. Parasuraman S

    February 11, 2023 at 10:57 am

    Unique celebration and enjoyment of Christmas! Well done, dear friend!

    • Waleed Rishmawi

      February 11, 2023 at 8:20 pm

      Parasuraman: yes it was a special time of the year where we enjoyed the fellowship all the family together enjoying good food and good music. have a blessed day

  3. Mark

    February 11, 2023 at 2:25 pm

    Hey Waleed,
    Nothing worse than trying to repair a job after someone else has massacred it before you.
    Well done on the repair

    • Waleed Rishmawi

      February 11, 2023 at 8:22 pm

      Mark: that is my son's name by the way. my son is 12 years old and he shared my passion for electronics. it is a beautiful name.
      I always deal with that and sometimes i get frustrated about it but what can we do other than make it right and pleasing customers. have a blessed day

  4. Albert van Bemmelen

    February 11, 2023 at 3:32 pm

    I found out that replacing or placing 4 or 5 pin usb or micro usb ports is easy when you just put some solder on the copper tracks and add the chassis plug into the solder by just using our hot-air solder station. And by letting the solder carefully cool down without moving the connector in the meantime. That also works when adding or replacing HDMi chassis ports in the same way but is obviously harder because of the many more pins they carry.

    • Waleed Rishmawi

      February 13, 2023 at 5:15 pm

      albert: yes. that is the way it should be done but it is easy say than done. it is a lot of details to pay attention to especailly when it comes to hot air station, tempreture and air flow, it make a difference. have a blessed day

  5. Babu M S

    February 11, 2023 at 5:00 pm

    Good fix and given good idea. Thanking you for sharing.I am facing one problem in Sony home theatre system no BDV-E690 that display is not getting ON.When I am switching ON the enable and pvdd supply is getting and showing 3.3 volts. In display panel Dvd player disc door opening and closing switch function takes place.Can you help me to solve the problem please.

    • Waleed Rishmawi

      February 13, 2023 at 5:19 pm

      Babu: thanks man. is 3.3 is the right voltage to the display? maybe display itself is defective. usually there are fuses around it check that for sure. sorry I wish I can help you but it is hard this way without schematics or any knowledge about the device. have a blessed day

  6. Arun Kumar

    February 11, 2023 at 6:14 pm

    Congratulations Jestine Yong on Completion of 1000 th mile stone
    Many many happy returns of the moments.

    • Jestine Yong

      February 11, 2023 at 9:56 pm

      Hi Arun,



  7. Yogesh Panchal

    February 15, 2023 at 3:52 pm

    Good fix! Waleed,
    for USB connector sturdiness holding on the PCB- Through hole pins are best option i do not know how many money saving by manufacturer on this onboard design.... where this port is used very often and easily gets damage.

    • Waleed Rishmawi

      February 16, 2023 at 5:34 pm

      yogesh: thanks man. they are very easy to break off board and putting them back on board is even eaiser. have a blessed day


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