[Q] SD card not working

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Hssarth

Member
Jul 18, 2010
41
1
So, I have a 64gb class 10 card from Patriot in here, which I formatted from the phone when I first got it. Last week, the device kept telling me there was an issue with the card and that it needed to be formatted. Despite rebooting, remounting and checking the contacts, the only thing that seemed to work was to pull the battery.

Today, I had the same issue and went through the same motions. Only now, the phone doesn't seem to think the card is even there. I checked the log in recovery and found multiple lines saying it failed to mount.

I'm not currently able to test the card in another device, or another card in the slot. But until I am in a couple of hours does anyone here have a suggestion?
 

Solentice

Member
May 26, 2013
7
1
Going to have to do some research on that...

So, I have a 64gb class 10 card from Patriot in here, which I formatted from the phone when I first got it. Last week, the device kept telling me there was an issue with the card and that it needed to be formatted. Despite rebooting, remounting and checking the contacts, the only thing that seemed to work was to pull the battery.

Today, I had the same issue and went through the same motions. Only now, the phone doesn't seem to think the card is even there. I checked the log in recovery and found multiple lines saying it failed to mount.

I'm not currently able to test the card in another device, or another card in the slot. But until I am in a couple of hours does anyone here have a suggestion?

I've read that even the S3 was finicky with different microSD card brands, and it seems to continue in the S4. You may have to try a Samsung brand card or I suggest search around to see which brands people have had the best luck with and go with that. Until then check if your card is ok with a reader or another phone and then if you have to, use the lifetime warranty or exchange at store. I've been using a Lexar brand (also Class 10) for well over two weeks now in my S4 with zero issues, but a couple of weeks is no test.
 

Landon4444

Senior Member
Aug 11, 2011
126
39
So, I have a 64gb class 10 card from Patriot in here, which I formatted from the phone when I first got it. Last week, the device kept telling me there was an issue with the card and that it needed to be formatted. Despite rebooting, remounting and checking the contacts, the only thing that seemed to work was to pull the battery.

Today, I had the same issue and went through the same motions. Only now, the phone doesn't seem to think the card is even there. I checked the log in recovery and found multiple lines saying it failed to mount.

I'm not currently able to test the card in another device, or another card in the slot. But until I am in a couple of hours does anyone here have a suggestion?

You could try to repair it with a Windows PC. I had a similar issue and the following fixed it for me.

Open a cmd prompt and type

chkdsk /X /F E:

Where E was the drive letter of my SD card when mounted using a card reader. You will need to put the appropriate drive letter there.

If this helps thank "mr_deimos" at http://xdaforums.com/showthread.php?t=367912 That is where I found this info.
 

endwhysee.bk

Senior Member
Aug 20, 2011
191
26
Dania beach
I had the problem with the s3 and s4 . I even had to call sandisk and replace it . But at the end it kept doing the same thing . So what I did was put it in my computer and did a full format it toke about two to three to format it but it finally worked. I called samsung I mean I tryed everything. So I talk to a I.t. guy and told me to do that and it work but keep in mind my card was a sandisk 64gb class 10.Hope that help.

O.Nice