I've tested two sandisk class 4 SD cards.
If I format it to fat32 and partition the space(to use link2SD), my phone refuses to use the SD card and says it's not there. I use minitools for partition and the official SD card maker software for formating. I did everything by the book and tried multiple options(different labels, ntfs, ext2, etc.)
A fresh, unallocated space card works perfectly fine however.
My phone is rooted and unlocked bootloader running softMIUI rom with a modfied power saving blend kernel.
Please help! This is confusing the hell out of me.
Was looking at your post and I decided to grab a few of my MicroSD card 1gb, 2gb, 4gb, 8gb and 16gb....
I formated all of them on windows .... right click format, all default settings... Fat32. These are MicroSD cards that have had information on them... they all run fin on my arc. All different brands.
This leads me to believe that there's possibly either something wrong with the MsD card or the reader on the phone.
fluxgfx said:
Was looking at your post and I decided to grab a few of my MicroSD card 1gb, 2gb, 4gb, 8gb and 16gb....
I formated all of them on windows .... right click format, all default settings... Fat32. These are MicroSD cards that have had information on them... they all run fin on my arc. All different brands.
This leads me to believe that there's possibly either something wrong with the MsD card or the reader on the phone.
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Solved it
Did this:
Changed the partition id to this:
"0*06 fat16,greater than 32 mb"
and made the second partition fat32 as well.
Removed the 100mb linux swap file partition I created....not sure if that was necessary.
This is a cross post of a thread in the Q & A section because I think it is more appropriate here. Please forgive me if you disagree.
I have encountered a problem using SDXC cards in the Galaxy S III. It appears, to me, to be a bug in the exFAT drivers which are only used in the 64 GB SDXC card, 32GB cards and less are formatted as FAT32.
Please see thread http://forum.xda-developers.com/showthread.php?t=1805743 for further information.
ChitownWingMan said:
This is a cross post of a thread in the Q & A section because I think it is more appropriate here. Please forgive me if you disagree.
I have encountered a problem using SDXC cards in the Galaxy S III. It appears, to me, to be a bug in the exFAT drivers which are only used in the 64 GB SDXC card, 32GB cards and less are formatted as FAT32.
Please see thread http://forum.xda-developers.com/showthread.php?t=1805743 for further information.
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I heard you might need to format the card as FAT32
Zephyron said:
I heard you might need to format the card as FAT32
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You can't use FAT32 on a 64GB card. The phone formats 32GB or smaller as FAT32 and the 64GB at exFAT.
Some platforms support FAT32 on greater than 32GB cards/drives but it is not very compatible.
Thanks for your help
ChitownWingMan said:
You can't use FAT32 on a 64GB card. The phone formats 32GB or smaller as FAT32 and the 64GB at exFAT.
Some platforms support FAT32 on greater than 32GB cards/drives but it is not very compatible.
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Don't confuse FAT32 and FAT16. FAT32 supports up to 2 TB, though I believe Windows makes it difficult to format anything larger than 32 GB.
tamasrepus said:
Don't confuse FAT32 and FAT16. FAT32 supports up to 2 TB, though I believe Windows makes it difficult to format anything larger than 32 GB.
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You are correct the theoretical maximum size of FAT32 is 2TB. However, since Microsoft in their infinite wisdom decided only to support FAT32 up to 32GB (most likely to force people to use NTFS) support for FAT32 above 32GB is spotty and unreliable.
This being said if you format a 32GB card or smaller in the Galaxy S III, it will be formatted FAT32. If you format a 64GB (or greater I presume) in the Galaxy S III, it will be formatted exFAT.
ChitownWingMan said:
You are correct the theoretical maximum size of FAT32 is 2TB. However, since Microsoft in their infinite wisdom decided only to support FAT32 up to 32GB (most likely to force people to use NTFS) support for FAT32 above 32GB is spotty and unreliable.
This being said if you format a 32GB card or smaller in the Galaxy S III, it will be formatted FAT32. If you format a 64GB (or greater I presume) in the Galaxy S III, it will be formatted exFAT.
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exFat format will not read correctly on SGSIII. I just had this issue with my 64 GB SD card. I formatted it in FAT32 and all was fine. I did use a Mac with disk utility to do the formatting though. Windows 7 was trying to force exFAT to format.
ChitownWingMan said:
You are correct the theoretical maximum size of FAT32 is 2TB. However, since Microsoft in their infinite wisdom decided only to support FAT32 up to 32GB (most likely to force people to use NTFS) support for FAT32 above 32GB is spotty and unreliable.
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Windows Vista and above don't let you format volumes larger than 32 GB as FAT32. It's an artificial limitation on their part.
Other than that, FAT32 has been around a long time, and works fine with 32+ GB volumes. It's not great but doesn't really become spotty and unreliable till you go beyond 100 GB or so.
I'd get a Linux LiveCD and format your SD card FAT32 with that.
Partition Wizard Home Edition (win) is free and will format all your fat32 needs http://www.partitionwizard.com/free-partition-manager.html
hauniii said:
exFat format will not read correctly on SGSIII. I just had this issue with my 64 GB SD card. I formatted it in FAT32 and all was fine. I did use a Mac with disk utility to do the formatting though. Windows 7 was trying to force exFAT to format.
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Thank you for confirming my research. I am currently in communication with Samsung, T-Mobile and SanDisk. With any luck with potential sales in the millions they will fix it. The man at Samsung commented "We sell that card on our website we had better get it working"
Further Update
ChitownWingMan said:
Thank you for confirming my research. I am currently in communication with Samsung, T-Mobile and SanDisk. With any luck with potential sales in the millions they will fix it. The man at Samsung commented "We sell that card on our website we had better get it working"
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I spoke with someone at Sandisk and they have heard of the problem and are researching it. T-Mobile and Samsung are also "investigating" it.
I formatted my 64GB card FAT32 and I am using it like that for now.
One problem with using FAT32 is that there is a directory size limit of 65,535 bytes total for the directory itself (not the files in the directory). I have a Titanium Backup directory with almost 12,000 files in it, all with long names. That easily exceeds the 64K directory size limit and this directory is "full" and trying to write to it generates errors.
If you have a directory with 5,000 files with an average file name length of 12 characters (rather short in this day and age) that makes the directory 60,000 bytes. If the average file name length is 13 characters the directory size will be 65,000 bytes and if the average file name length is 14 bytes the directory size is now 70,000 bytes and this exceeds the maximum directory size.
If you keep your file names to the old DOS 8.3 (11 characters) format then a directory can handle approx. 5,957 files. The actual number is less because there are other bytes in each entry used by the system (permissions, file size, starting segment, etc.).
For programs like Titanium Backup this can become a problem. Titanium backup uses long file names (longer than 20 characters) that include the date in them. I always backup my entire phone downloaded apps & data, system apps & data and system data. This is about 470 different items being backed up. Titanium Backup uses 2 and sometimes 3 files for each item backed up. I also maintain a 7 day backup history. This creates a total of 8,225 (approx) files, if each has a file name length of 20 characters that would be a directory size of 164,500 bytes.
This far exceeds what FAT32 can handle. And this is a somewhat reasonable scenario.
So, let's put pressure on T-Mobile and Samsung to get the exFAT problem fixed.
I am trying to convert my 64gb micro SDHC card to FAT32 but i really dont wanna mess it up. when i go to format it, it asks for a cluster size, what is that??
Mine came formatted as exFAT and I decided to use it that way. It works in the phone but the recoveries will not read it.
You might try SD Formatter. It is specifically designed to format SD cards and others have reported using it to format 64GB cards.
I just received my SanDisk Ultra 64 GB microSDXC Class 10 UHS-1.
What's the best way to prepare it for my Note 2 (fat32, exfat, etc)?
Is there a particular way it needs to be formatted to be accessible via TWRP?
Thanks!
I did exfat on my card so I can put files larger then 4gb on it. Best way to format it is if you have some way to plug the card into your computer. Ib myself mounted my card through the recovery and formatted on my computer that way.
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format the card in the phone. You do it within Android in the settings area. I'm not sure what format, but I think it's NTFS. It's what I did, and I have put files larger than 4GBs.
On a side note, the file size issues doesn't come up except with media such as movies.
Stock OS
I'm recording video files but the problem is once I hit the 4gb limit of the SD Card, the video quits.
Couple of friends explained this is a FAT32 limit, so we tried NTFS and the stock OS doesnt recognize the card at all. Then we tried EXTFAT and while this allows files to be copied to the SD card over 4gb, the video recorder still craps out on me at 4gbs.
Anyone have any advice for how to get around this magical 4gb limit?
4GB limit is true about the FAT32 with individual file sizes. I believe if you have phone format your SD card, it'll be NTFS. Just need to change the camera to save to the SD card.
lovekeiiy said:
4GB limit is true about the FAT32 with individual file sizes. I believe if you have phone format your SD card, it'll be NTFS. Just need to change the camera to save to the SD card.
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It does not format the card NTFS, and I still have the 4gb limit. I'm going to guess that even with extfat, the limit is the video recorder.
Even formatted in NTFS via a computer, it will not go over 4gb.