Is my SD Card broken? - Galaxy S III Q&A, Help & Troubleshooting

Hello!
I have got a 64GB micro sd card, it was running for a year or so in my Galaxy S3, before in The Note2. It was pre formatted in exFat - everything worked fine without a problem. (It is a SanDisk SDXC card, the grey/red one)
A few days ago I was walking home and my battery was about 3 or 4 percent. I wanted to listen to some music on my way home, suddenly there was no more music and I couldn't start the phone. I tried the power button, I hoped there may be a little power left, but the screen kept black.
At home I charged my phone. When I started it later the SD Card wasn't recognized. Although I had a lot of music on it I wanted to format it in my phone (I have got all music and the rest of the card backed up on my pc)
It doesn't work, there was some notice like "...couldn't be formatted" I don't know the exact words.
Then I tried to format it from the PC (the card still in the phone) - I couldn't even see the card.
Then I tried it with a card reader, and later on in a laptop with a card reader and both times the same:
If the card gets recognized it has to be formatted, but the size of the card is "32.6 MB" which is definitly wrong. This isn't space that was on the card left, there were some GBs left. Even if I try to format it the PC stops and says something like "couldn't end the formatting" -> my PC has german language, I can't tell you exactly
What can I do now?
Has someone had a similar problem? It was a 64GB card, and these are not cheap
Have I maybe killed the card when the battery was near 0% and I tried to restart the phone?
I am pleased about every answer.
Have a nice day
lienot

See SanDisk card problems via Google return to SanDisk .
jje

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[Q] strange bootloops

Hmm..
Everything went fine untill a few minutes ago my phone was connected to my pc and I rebooted it, put in my freshly formatted SD card and it started bootlooping like crazy. So I pulled out my battery two times and after that I just let it loop and it did only twice then, after it the bootprocess was doing it's job and my phone started up.
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Media Scanner = Resets Phone = Boot Loop = :-(

My phone resets about 30 times in a row and gets INCREDIBLY hot to touch. Soon as it loads up, the "Media Scanner" goes off then it resets. Usually it's a soft reset, but it varies, sometimes the whole thing just shuts off and reboots.
I took the MicroSD card out (32GB) and now it works.
So how do I fix this ?
Does anyone know how to format an External SD card ? Steps ?
Should I just delete everything on the external then put the stuff back on ?
Please advice ?
If you still have your microSD adapter you can scan, copy over any files you want to keep and then format it using your CPU. If that doesn't work, buy new card.
Buddy of mine had random reboots with huge battery drain when rebooting.
His SDCard turned out to had failed on him, since he took it out, not a single reboot anymore.
Funkadelick said:
My phone resets about 30 times in a row and gets INCREDIBLY hot to touch. Soon as it loads up, the "Media Scanner" goes off then it resets. Usually it's a soft reset, but it varies, sometimes the whole thing just shuts off and reboots.
I took the MicroSD card out (32GB) and now it works.
So how do I fix this ?
Does anyone know how to format an External SD card ? Steps ?
Should I just delete everything on the external then put the stuff back on ?
Please advice ?
Click to expand...
Click to collapse
You can format it in a PC that has a flash memory card reader, though you will probably have to slip the microSD card into an adapter first.
EDIT: mudferret beat me to it.
ctomgee said:
EDIT: mudferret beat me to it.
Click to expand...
Click to collapse
We're all winners.
Sent from my MicroTAC 9800X using speech to fax modem

Battery Pull then Corrupt SD Card

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There've been occasions in the past that for me and for others as well that something's wonky with the Micro SD card that's solved by reformatting the card and starting back from scratch. I know how much of a pain it is to move all your stuff off and put anything back on you definitely want to keep there, but there's not really anything else to try, I don't think. That's the inconvenient aspect of the now getting convenient-sized largish Micro SD Cards.
Good luck!

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