32GB SD card in DroidX becomes read-only - Droid X General

Anyone using a 32GB class 4 micro SDHC card in a DroidX?
I just got one to replace my 16GB class 2 card, but this new card becomes read-only occasionally.
Very annoying.
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More info at http://forums.motorola.com/posts/99bf75a86c
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SD card issue

If you having issues with your SD card just reformat it to FAT32 and that should fix the R/W problems.
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External SD card not recognized by AOSP roms

Hi all,
I'm loving AOSP roms on this phone, but I can't get them to recognize my 64gb external SD card. It just says "blank SD card" when I try to mount it. TW roms have no problem with it. Any ideas?
Thanks!
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Its bc of the format on the sd card I believe fat32 is supported and exfat is not
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Yeah, I ended up reformatting the card to Fat 32 and now it works like a charm. CM looks awesome on this screen and runs faster than CM on any other phone I've used.
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devoureddreams said:
Its bc of the format on the sd card I believe fat32 is supported and exfat is not
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Thanks! Formatted to fat32 and my 64gb micro sd is functioning now using Carbon (ASOP) on Galaxy S3.
For anyone with this problem and don't know what software for Windows to use... EaseUS Partition Manager worked like a charm for me.

Virtual sd card

Hey, I'm too cheap to buy an sd card lol, and I was wondering if I could repartition some of my userdata partition as a virtual sd card? I want to reallocate 4 gb if that helps. Thanks!
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Samsung 64GB micro sdhc becomes only 30.5GB after formating on windows 7 or 8 in fat3

My samsung 64gb micro sdhc card on working properly in my galaxy s4 I9500 with stock latest firmware.some times my files disapears and some times becomes unusable.when I attach this card with my laptop with the card reader the windows demands to format the card.in format process I have only two file system options fat32 and ntfs.and the storage size only shows 30.5GB.after format it becomes only 30.5GB in fat32 format and works perfectly. Any solution to use my card with full storage size in phone and windows laptop with windows 7 and 8.
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paradise220 said:
My samsung 64gb micro sdhc card on working properly in my galaxy s4 I9500 with stock latest firmware.some times my files disapears and some times becomes unusable.when I attach this card with my laptop with the card reader the windows demands to format the card.in format process I have only two file system options fat32 and ntfs.and the storage size only shows 30.5GB.after format it becomes only 30.5GB in fat32 format and works perfectly. Any solution to use my card with full storage size in phone and windows laptop with windows 7 and 8.
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You could try and format it on the phone it might work
format it in exfat instead of fat32 or ntfs
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Memory storage becomes 62.5GB after formating on phone.but my files disapers after a few minutes and the windows 7 or 8 asked to format the card.
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paradise220 said:
Memory storage becomes 62.5GB after formating on phone.but my files disapers after a few minutes and the windows 7 or 8 asked to format the card.
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I am having the exact same problem. Is this a Samsung issue? or just a dodgy SD card?
You can only use and format your own sd card with your cell phone only not with any other platforms,,,,, live with it lol, i guess if you would like to move or copy some files just use the usb cable
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The main problem is it that my data disappears after some times from this 64GB micro sd card.32GB cards works perfectly.
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paradise220 said:
The main problem is it that my data disappears after some times from this 64GB micro sd card.32GB cards works perfectly.
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Its a samsung genuine sd card and it supposed to work perfectly! Make sure its not a copy one?? Try google to compare...
I have a 32 kingston , it came with my previous digital camera 2 years ago , i am using it now for the S4 :thumbup:
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64gb sd card problems.

Hello
I just bought a new 64gb micro sd card
But run into all kinds of problems...
Extracting rar files from my micro sd card won't work, I get the error "wrong header type".
Extracting the same files from internal works fine.
Extracting a movie from internal to external sd works but the movie will only play for about 1 minute and then it says
"Unable to play video"
Anyone got some ideas...
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Did you tried to format your sd card? That should help with your issue.
probably fake sd card...
Most probably a fake.
Use H2testw to test the SD card:
http://mympx.org/Downloads/p13_sectionid/2/p13_fileid/13
nikzDHD said:
Most probably a fake.
Use H2testw to test the SD card:
http://mympx.org/Downloads/p13_sectionid/2/p13_fileid/13
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I formatted exfat and fat32 but neither will work.
What do you mean by fake sd card..?
Thanks for your reply
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I formatted my SD card in EXT3/EXT4 format. Android 4.4 works fine
richard2311 said:
I formatted exfat and fat32 but neither will work.
What do you mean by fake sd card..?
Thanks for your reply
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Fake SD cards do exist in masses.
Take a read of this: http://www.ebay.co.uk/gds/Spotting-...SD-USB-Memory-Cards-/10000000175807852/g.html
Yep it's a fake I have a 32 gig made in China all sorts of problems ...just like yours. ... bought one that was made in Japan and no problems with exact same files
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I have problems with my samsung microsd 64gb (10). Cant move apps to sd. When i upload my images and vodeos to my card, it show all corrupted on my phone. With my 32gb no problems.
Maybe fake samsung card? It was in a original samsung package.
I formatted to fat32 en exfat but thesame problem.
(Srry for my english)
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midyat47 said:
I have problems with my samsung microsd 64gb (10). Cant move apps to sd. When i upload my images and vodeos to my card, it show all corrupted on my phone. With my 32gb no problems.
Maybe fake samsung card? It was in a original samsung package.
I formatted to fat32 en exfat but thesame problem.
(Srry for my english)
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Run the program mentioned above to test the card please.
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