How To Repair USB Flash Drive
“USB Device Not Recognized” Symptom
Many times we see flash storage that is not recognized by the Operating System due to hardware problems. You can troubleshoot it by follow the steps given below:
Step- 1. Open the Case gently with a putty knife or strong blade.
Step- 2. Peel out circuit board.
Step -3 Physically examination for any damage or broken component and traces with magnifying glass.
Step – 4 Resolder connector first then connect device with pc and check the problem gone away. If not do the next step.
Step – 5 Resolder all components around the connector and controller chip. Especially check fuse type of resistors. Sometime the value of resistors increases.
Step -6 Resolder Oscillator crystal (usually 12 MHz). And reconnect device with pc if work it’s ok otherwise replace crystal.
Note: – If same package of crystal oscillator is available then arrange a 12 MHz crystal oscillator from existing USB device like USB memory card reader, USB drive or etc and make connection as below.
1) Remove crystal
2) Take two wire and crystal Solder the wires to crystal
3) Solder wires and crystal Sold crystal to appropriate place
Adjust crystal in the case and now the device is ready to check
I hope these steps will be helpful to you. However if all efforts failed to gain your goal, don’t worry there are other methods to recover your important data.
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31 Comments
Hi Daud and thanks for the infoe, it is very useful.
Just one more question regarding step 5 if i may:
"Step – 5 Resolder all components around the connector and controller chip. Especially check fuse type of resistors. Sometime the value of resistors increases."
should i check only resistors or also capacitors?
how do i know that a value i read is faulty?
what should the good reads and bad reads look like?
Thanks mate,
Oded
Hi Oded !
You should check resistors especially. however chances of capacitors fault are very low. value of resistor is marked on it.
thank u for reading this article.
Thanks Daud, appreciate your advise.
Hi Oded !
Thank u for reading this article.
You should check resistors. chances for faulty capacitors are very low.
value of resistor is marked on it.
Daud
thers a scenario with my flash drive, i found one of my pendrives to be lost and after 6 months period i found that PD behind my cpu attached to one of the USB ports and off course its not working now, so can that PD be repaired? plz reply.
i want to advice DVD repair in any types fault but how?
dear sir can u build usb dongle for my pc? i have good offer for u would u pls contact me 03216419335
thanks
hi daud
1st thanks for post
if my USB show capacity 8 GB but my pan drive real capacity only 2 GB how cam i find this problem