[jmarsh97]

So I have had this phone for a while, and the SD card has always worked great. But yesterday, it just stopped working. I noticed it wasn't working when I opened my music and it said that I have no music. So I went into the storage settings, and under SD card it said unavailable. I took out the card and put it back in to see if it would fix itself, and for a second it said preparing SD card, but then it flashed "removing SD card" and it does the same thing every time I try. I tried using my brothers card, and it worked fine. My card also works on his phone. Has anyone else had this issue, and is there a way to fix it?

[ilybbyrawr]

Mine has been doing the same thing! I've had this phone for two years and never had this problem until a few days ago. It is aggravating cuz I have so much stuff saved to my card that i can no longer use. if anyone has a solution, please share it!

[PvilleComp]

Put the card into your computer and copy everything off - then re-format as FAT32 and copy everything back. You should be good.

[PolynesianMedic]

I have this same problem, but when I try to put my card in my computer, the computer card reader doesn't recognize anything is even there. I have also tried another, smaller card, and I get the same results. Thoughts?

**EDIT** I got my computer to see the card, however when I tried to access it to remove everything from it so I could format it, I got an I/O Device Error

[HTC WILDFR]

hi ppl,am using htc wildifire since 1 year.
Just Couple of days before i wanted a movie(HD-MP4 file 640 MB) from a friend's laptop, as i dint had a pen drive i copied it in my memory card.

i CASUALLY opened gallery and i just clicked on the folder of the movie, somthing happened n since then my phone is not taking reading any memory card. (CARD WORKING fine IN PC)

ERROR IS "REMOVED SD CARD, INSERT A NEW ONE"
plz plz help (PHONE NOT IN WARRANTY)
PHONE NOT reading other SD CARDS AS WELL..

[PvilleComp]

If it's working on your PC then copy everything off - format it as fat32 and then copy everything back.

SD cards can suffer from file system corruption and failure just like regular drives.

[mystiphi]

I'm having a similar problem...

My phone all of a sudden stopped reading my SD card in all apps. Under Settings -> SD card & phone storage, it tells me the memory card has 29.6GB of total space and 8.23GB of free space. Also, I am able to access all the files but only through Root Explorer. I removed the card, copied the data to my computer, formatted as FAT32, re-copied the data back to the card, and am still having the exact same problem!!! Yes, I am rooted but did not change any settings. I even went back to stock thinking the system update that recently went through could help. Still no access other than through Root Explorer. Is there some setting or file somewhere that should be edited or removed. Again, I didn't change anything in the first place. It's been like this for 2 weeks now. Frustrating...

[plarson]

If I take the back off my Galaxy S3 and press on the sd card from the top metal enclosure, the "Mount SD Card" shows up instead of being greyed out, but my card still reads as empty! This sucks. I cannot read it in my computer SD Card slot either (with adapter). It asks if I want to reformat my card. I'm stuck. Should this be covered under warranty?

[Angelgreene03]

Old sd card kept turning my phone on and off. new sd card is taking forever for my downloads would love to knw how to tranfere all my old data to my new sd card. please could someone walk me thru on how to do this. ill hav to use a friends comp.