Sir

There is a problem with my 8gb micro sd card.When i attached it with my pc it show only for 2 seconds and suddenly disappear. I attach it with many pc and different os platforms but faced same problem. I tried to repair it with many mmc format,wipe,resize,zero fill utilities but i am unable to format it because there is no detection of this card after 2 seconds. I inserted it in java/android/Symbian phones but card remove automatically in 2 seconds. Please help me how can i Format/Repair this card.

Thanking You

Maybe oxidation on contacts?
Try to clean them with pencil eraser

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My firmware database:
https://mega.nz/folder/O01DkBRI

As you don't want data, then throw it away. There is an internal problem with one of the components inside and I believe not fixable.