Have you ever used this microSD successfully in any device? What are the details on it (source, brand, etc)?
Google h2testw - I always use it to test any microSD I buy because there are too many fake devices out there and it is not worth risking my data vs spending the time to completely test a device.
I think it's always best to let the device/phone format the microSD, but will be interesting to see what happens if you format it in your PC.
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