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CompactFlash, SD, MMC, USB flash storage. Anything that does not have moving parts inside.
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Micro SD card pin out

December 2nd, 2022, 5:02

Hi Friends
I have got a 64gb microsd card which is not detected. When I connect it to card reader LED on card reader blinks for a second and goes off.
I think something is short inside .
I want to know how can I check card using multimeter (by checking continuty)

Re: Micro SD card pin out

December 2nd, 2022, 5:42

VCC-GND - check resistance.
Card is hot after power on?

Re: Micro SD card pin out

December 2nd, 2022, 7:28

arvika wrote:VCC-GND - check resistance.
Card is hot after power on?


When it comes to Nand arvika is last word , Master of masters .
Thanks a lot arvika
I have checked VCC & GND ( pin 4 and 6) they are open ( short) , I think its game over card is non recoverable.

Re: Micro SD card pin out

December 2nd, 2022, 8:25

terminator2 wrote: I have checked VCC & GND ( pin 4 and 6) they are open ( short) , I think its game over card is non recoverable.


Sometimes not end :) If you have, you can use thermal camera or freezer and check which place is hottest the fastest. And if possible remove short. Such cases are very hard but we have success statistically for ~50% cases.

Re: Micro SD card pin out

December 3rd, 2022, 2:58

arvika wrote:
terminator2 wrote: I have checked VCC & GND ( pin 4 and 6) they are open ( short) , I think its game over card is non recoverable.


Sometimes not end :) If you have, you can use thermal camera or freezer and check which place is hottest the fastest. And if possible remove short. Such cases are very hard but we have success statistically for ~50% cases.



WO Great :good: :-D
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