nintendo switch sd card reader not working

This time I removed the metal shield to inspect the molex board connector under the microscope. After installation, the micro SD card was recognised but when my son tried to use his Switch, it lost connection again. So I decided to attempt the repair myself and purchased a new reader from eBay. The premier still has emergency lock down powers for all of 2021, so decided against sending it away as I didn't want to loose the unit for months, but my son really wanted his Switch repaired. I began looking into sending the unit for repair this year, but found the repair centre is in Victoria. My son was happy to still have his Switch that allowed him to play with friends online during the lock down periods so we waited. It was early pandemic days, the virus posed a serious risk to my daughter, so I was unwilling to order a replacement card reader that would most likely come in from China. Online people with the same problem were repairing their devices with a replacement card reader and I assumed the contact pins were damaged, so I left the job until I could get a new reader. I check continuity of traces across the flex and all was fine, the only thing I could not easily check were the contact pins inside the card reader, so I carefully cleaned the little card detection switch on the side and reinstalled without any improvement. So I removed the reader and carefully inspected it under a regular biological microscope with the aid of a bright work light but found no damage. I finally tried cycling installing the card while in the data management screen, and suddenly the card was recognised and then immediately lost.

I first tried software updates, reading forum advice and re-updating the software but had no success.

Being that it was March 2020 in Australia, the lock downs were a week away, and trying to send the device in for warranty repair probably would have seen it gone for months, so I tried to deal with the problem myself. So he saved up his pocket money and bought a micro SD card, but was disappointed when the Switch failed to recognise it. I apologise if this is a bit long but Im on a bit of a high! My son got a Nintendo Switch for Christmas last year and very quickly ran out of internal memory with all the games he put on it. Im a long time lurker, but I finally have something worthy posting, a successful repair.

Nintendo switch sd card reader not working