Don't Miss

4GB Kingston USB Thumbdrive Repair

By on December 3, 2015








4GB Kingston USB Thumbdrive Repair


This Kingston 4GB USB Thumbdrive sent by my friend for me to repair had a complaint of he had accidentally stepped on it causing it to malfunction.

It was pretty easy to open the cover with the flat head screw driver. Remember, do not force open such cover because it can leave a bad mark on the cover.

usb repair


After opening the cover the first thing I saw was three of the solder joints were detached (including the circuit line).

usb board repair


The connector had to be removed and throughoutly cleaned the circuit board using chemical. I purposely marked the circuit lines with number 1, 2 and 3 so that it would be easy for you to see.

usb repairing


Once done the marking, I carefully soldered a single thin wire to joint between the points that were broken. I had to solder three thin wires to complete the job.

thumbdrive repair


When it was completed I tested the USB drive by inserting it to the CPU computer. It was working perfectly fine.

thumb drive repair


Now is the time to apply glue/gum onto the joints and the wiring as this way it can protect the wires from shorting to other components and the solder joints will not easy to detach.

thumb drive repairing

Conclusion- Although the price for USB is cheap, I had to repair it because the information contain inside the drive is much much more expensive than the thumbdrive itself. My friend was happy and I’m glad to help a friend in need.



This article was prepared for you by Suranga Bandara who owns an Electronics shop in Anuradapura, Sri Lanka.

Please give a support by clicking on the social buttons below. Your feedback on the post is welcome. Please leave it in the comments.

P.S-  If you enjoyed reading this, click here to subscribe to my blog (free subscription). That way, you’ll never miss a post. You can also forward this website link to your friends and colleagues-thanks!

Note: You may check out his previous repair article in the below link:




  1. Emmanuel

    December 3, 2015 at 10:57 am

    thanks man, you really doing a great job

  2. Parasuraman S

    December 3, 2015 at 10:58 am

    Vow! Such devices are too tiny for me to handle! But you have done a good deed to your friend! Will the glue used (probably Fevibond) create a problem in the future like it had done in many equipment!

  3. Merlin Marquardt

    December 3, 2015 at 11:05 am

    Very nice repair.

  4. John Chambers

    December 3, 2015 at 1:07 pm

    Another common issue with usb drives is the 12Mhz crystal. It can go bad and the processor loses its clock and can't read memory. The crystal is cheap and easy to solder in so you can read the drive, back it up and then toss it.

    • Humberto

      December 4, 2015 at 11:56 pm

      Yes John, the crystal in these device go bad in many of them.

  5. Yogesh Panchal

    December 3, 2015 at 2:18 pm

    Suranga, COngratulations! for FIx and thanks for sharing.

  6. Robert Calk

    December 4, 2015 at 6:29 am

    Good job, Suranga. I'm sure your friend is very happy.

  7. Humberto

    December 4, 2015 at 11:58 pm

    Hi Suranga, good repair. Now your feriend is happy, I know the meaning of loosing valuable information.

  8. Albert van Bemmelen

    December 5, 2015 at 5:43 pm

    Nice job Mr. Suranga! It is still unbelievable how fast and well these USB Memory sticks work, and have replaced our old Floppy Drives. I recently heard that it is one of the many Israeli Inventions that changed the world! Just like the 3D camera for Xbox360 and Xbox One, now known as Kinect.

    • Robert Calk

      December 6, 2015 at 6:29 pm

      You forgot about the CD/DVD, Albert.

      • Albert van Bemmelen

        December 7, 2015 at 6:39 am

        Robert, you mean how fast those are also going to disappear in favor of the SSD and USB Flasing memory modules?

        I still use those so that's why I didn't mention them. And of course the CD-Rom is an invention made by Philips in the Netherlands, and produced and distributed together with Sony Worldwide to escape their previous debacle called Video 2000. (That lost first from Betamax and secondly from VHS_Video Home System recorders). PS: did you know that it was Bing Crosby who helped producing the first VCR's called Ampex in the USA?

        • Robert Calk

          December 8, 2015 at 4:05 am

          The CD replaced the floppy drive before memory sticks got here. I still use CD/DVD's also.

  9. james malongo

    December 27, 2015 at 12:18 am

    pls is there any tv flyback repair tips

  10. martin

    April 28, 2018 at 7:17 am

    hi, i need your help i need de circuit diagram to dt101 g2 16 gb my flash is damage and need the files

  11. Artur

    June 6, 2019 at 8:10 am

    Thanks man, it help alot! 🙂


Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.