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can't format micro SD

post #1 of 6
Thread Starter 
i'm having trouble with my micro SD.

i tried putting my 64G micro SD into my galaxy S4.
it detects it but does not mount it. my phone suggests me to format it and every time i do it, it will re-ask me to do so.

now. i have tried formatting it in all basic windows formatting types and every time he is almost finished doing so the computer tells me he couldn't do it....

anyone have any ideas?

it will be much appreciated.
post #2 of 6
Is this a new mSD card, or one that you have used before and know for a fact that it isn't defective. The fact that Windows aborts the format leads me to believe that the mSD card may be defective.

Before making that assumption you could try a 3rd party drive tool like PartedMagic or similar to see if you can force a format.
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post #3 of 6
please double check what i'm about to tell you but if I remember correctly, I remember someone telling me to stay away from 64 gig SD's in my S4 because some of them were formatted in a certain type of format that the S4's won't recognize correctly. I bought a 32 gig sandisk Micro SD and it works great.
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NASzi's Stryker
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post #4 of 6
I have used this in the past: https://www.sdcard.org/downloads/formatter_4/ It seemed to work well.
post #5 of 6
most if not all 64gb sd cards come formatted to ex-fat.. the sd formatter listed in the post above should help you get it formatted to fat32. if that app still fails, it sounds like a bad card.
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post #6 of 6
Thread Starter 
must be a bad cart then. even he can't do it.
also it indicated it was a card of 8 Gb.....
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