Recently bought a 128GB Samsung microSD card ready for use in an Android phone. I formatted it (exFAT) and then ran it through H2testw although I didn't really know what I was doing with it.
I've now tried using it in the phone and it tries formatting and gives up, and doesn't then recognise it until I restart.
So I've just tried formatting it again in Windows. After two hours it pinged up, "Windows was unable to complete the format." Following a guide I came across I used diskpart to clean the card, then opening Disk Management was faced with the card concerned - 119.73GB exFAT Healthy (Primary Partition) and 16MB unallocated. On selecting the Primary Partition and attempting to (quick) format it immediately pings up unsuccessful. Doing a normal format the same route throws up the same problem.
I've tried to format in diskpart too and it won't work either.
The phone supports 128GB cards btw, and I've had the PC load others without issue too.
I'm out of my depth here. What do I need to do?
I've now tried using it in the phone and it tries formatting and gives up, and doesn't then recognise it until I restart.
So I've just tried formatting it again in Windows. After two hours it pinged up, "Windows was unable to complete the format." Following a guide I came across I used diskpart to clean the card, then opening Disk Management was faced with the card concerned - 119.73GB exFAT Healthy (Primary Partition) and 16MB unallocated. On selecting the Primary Partition and attempting to (quick) format it immediately pings up unsuccessful. Doing a normal format the same route throws up the same problem.
I've tried to format in diskpart too and it won't work either.
The phone supports 128GB cards btw, and I've had the PC load others without issue too.
I'm out of my depth here. What do I need to do?