yashsingh1/xdaforums huggingface dataset:
[Galaxy S III General] xterra91:
I was having issues also got the sandisk mobile mate sd reader windiws noticed automatically as 64 gb used gui format worked perfectly
[Galaxy S III General] mossy1963:
Just use Guiformat...small app attached
[Galaxy S III General] vicky4112:
Did you ever find out how to revert back to 64 GB. I am exactly in a similar situation with a 64 GB converted to 32 GB and do not know what to do?

Edit: I have used guiformat program also.
[Galaxy S III General] Hawkalpin:
You can still use your card normally. I've done the inverse way (Touchwiz to AOKP) and works too.

The point is: Touchwiz based ROMs have support to FAT32 and exFAT. AOKP ones have support only to FAT32.

That's another point OP have forgotten. Your card reader must support microSDXC cards. Most readers support only microSDHC and these are maximum 32Gb storage. microSDXC has elevated this limit to 2TB. I had to buy myself a new card reader due to that incompatibility.

There's a fragment in Wikipedia which explains this situation:

I really sorry for my english, but I hope you and another people understand it. :good:
[Galaxy S III General] Allyouseeisblue:
I had SD card issues with a fresh 64GB class 1 card from san disk, by default they are formatted to exfat which I my Verizion Galaxy s3 was having issues reading. I would get a "preparing sd card" then a "sd card fae to remove". Formatting the fat32 does the trick, tho windows will not format over 32gb so this tool comes in handy.
[Galaxy S III General] Careyst:
Thank you!
[Galaxy S III General] mikeblahblah:
Here is how I got mine going on my Samsung Galaxy S3 Sprint model with a SanDisk Ultra 64 GB MicroSDXC Class 10 UHS-1 Memory Card with Adapter (SDSDQU-064G-AFFP-A)

I used Mini Tool Partition Wizard Home Edition http://download.cnet.com/MiniTool-Partition-Wizard-Home-Edition/3000-2094_4-10962200.html

NOTE - Backup any files you wish to keep 1st. Power down phone before removing card.

1. Install after download

2. Select the card (in my case it was drive E:)

3. Click on Delete from the top between Create & Format

4. Click Apply on the far left hand side, this will take like 30 sec to a few min to run depending upon your system/card speed.

5. Click Create from the top between Merge & Delete.

6. In the Create As: dropdown choose Primary. In the File System dropdown choose Fat32. In the Cluster Size: drop down choose 32k. Click Ok.

7. Click Apply at the top left hand side and then Yes, it will take like 10-15 sec to apply then click OK.

8. Click Format at the top between Delete and Copy.

9. In the File System: drop down choose Fat32. In the Cluster Size: drop down choose 32k. Then click OK

10. Click Apply at the top left hand side, then Yes to proceed. It will take a few seconds to do, then click OK.

11. Close the program and that should do it.

12. Put the card back into your phone and power back up again.

Clockwork Mod backups, Titanium Backups, moving apps all worked after that and see's 64GB of space.

Hope it helps!
[Galaxy S III General] scott_0:
thanks OP, worked perfectly
[Galaxy S III General] CZ Eddie:
Just FYI, the PRO version of this software is free today:

http://www.giveawayoftheday.com/
[Galaxy S III General] KruseLudsMobile:
How come only Touchwiz supports the non-fat32 MicroSD cards and other ROMS do not? Isn't it faster when not Fat32?
[Galaxy S III General] efato:
It's all about licence... Sammy got the licence and open source aosp doesn't
[Galaxy S III General] DonHuan:
I've tried EaseUS Partition Master Home Edition and GUIFormat, but the recovery can't mount my sdcard, though Win7 and phone recognise it w/o errors. I'm confused.

Sorry, the problem was in type of partition: I chose Logical instead of Primary. It works now. :good:
[Galaxy S III General] placy:
Ebay is referring people to this thread for formatting SD cards.

I"m newbie here and it wont let me post links; and so here's a few

links that mods can clarify if desired.

Here's an HP tool for formatting fat32 larger than 32gb:

Also gives option to create DOS start Disk to USB, where win doesnt.

Just Google search (in quotes) "HP-USB-Disk-Storage-Format-Tool.shtml"

SDCard.ORG's Memory Card Format Tool (SDXC Drivers here also):

sdcard dot org slash downloads slash formatter_3
[Galaxy S III General] bleepsake:
Click Here

I made a Video if this helps anyone? I'm using the Ridgecrop method on here. Worked for me I'm using a 64Gb Sandisk micro SD. =)
[Galaxy S III General] pgallard:
I just did what you told us and i have my sd card 64GB working in my SGS3 :good::good::good::good::good::good::good:

THANK YOU VERY MUCH
[Galaxy S III General] PastaBatman:
This worked for 64gb Scandisk class 10 microSD

Just a thanks to say that this solved my problem. The program didn't give me an option of cluster size, but it worked nonetheless with FAT32 format chosen. Nice work, and thanks so much for sharing your conclusions.
[Galaxy S III General] robsquared:
I just wanted to add that there's another utility that does fat32 and works really well, tested on Paranoid Android ROM:

http://www.ridgecrop.demon.co.uk/index.htm?guiformat.htm

Just go go to the folder you extracted to and shift+right click on a blank area in the window and open command prompt here. Replace the drive letter with the drive your SD card is in and run fat32format L:
[Galaxy S III General] desnewell:
Many thanks

Thanks, worked for me on my rooted Galaxy S3 GT-I9300
[Galaxy S III General] NonCorp:
I used guiformat on my 64g SDXC, my phone sees it as write-protected for some reason, although I am able to write to it from windows. I am going to try one of the other programs linked previously when I get home.

I have a Sprint S3, but thought I would leave this here in case it helps anyone. ;)
[Galaxy S III General] JessSayin:
Wow! Too easy!!

30 seconds or less. Fantastic!

Thanks.:good:
[Galaxy S III General] elsuperlea:
I had the same error with my sandisk 64gb and made me crazy!

Thanks for the post!
[Galaxy S III General] Pegga63:
Thank you ...on 4.1.2...was working fine....then wouldnt mount in cwm....worked in twrp...strange,but all is good thanks again
[Galaxy S III General] sgs22012:
would using cwm or trwp format sdcard using mkdosfs make it fat32?

I have a sandisk Ultra 64gb that was in exfat and unusable on cm and tw roms
[Galaxy S III General] Spider3717:
:o Thank you!

You are amazing! Thank you so much, I thought it was just my card for abit but this worked perfectly for my s3! Fantastic!
[Galaxy S III General] Cunckster:
Thanks

Muito obrigado. estive procurando por esta informação há varios dias.
[Galaxy S III General] danarama:
Sorry, please post in English.

Traduzir para Português abaixo

Translate to Portuguese below
[Galaxy S III General] Cunckster:
Thanks

I'm just want to say thanks for the help, i've been searching this past 3 days.:good:
[Galaxy S III General] desnewell:
RE: 64gb Sans disk and Mini Partition Tool

Had the same problem on my Galaxy S3 GT-I9300. Had formatted before using these instructions a month or so ago. My music started juddering every now and again so decided to reformat the card (SanDisk 64GB Mobile Ultra MicroSDXC Memory Card with SD Adapt). Remembered to use MniTool Partition and to format to FAT 32 but forgot to split it into two partitions using this method(don't worry these partitions , do not show). I found this thread again and used this process and now the cyanogen based roms I am flashing can see the SD card (also before this CWM could not see the ext card but TWRP could). I think this problem is pretty common among these cards and I would just like to express my thanks for this extremely useful fix when nothing else seems to work out there.
[Galaxy S III General] AFFAFXP:
Thanks soooo much.

Worked perfect on a pny 64gig microSD out of the box as a exformat AGAIN thank you very much.....:laugh:
[Galaxy S III General] paty:
I tried to use tge EaseUS Partition Master and the GUIFormat. It did successfully format to my Kingston 64G Class 10. However, when I tried to copy few thousands of photos to it. It failed to copy at the middle of copying process. Only few hundreds photos copied. It is it lost the file index. I tried to copy it throught a Win7 computer or vs my S3. The result are the same. Any idea and solution? Please help.

thanks
[Galaxy S III General] ArcAngel66:
Hi -- # 6 when choosing Fat32 for file system, the Cluster Size is not there to pick 32k; so I went ahead and finished the rest of the steps and my SD card still showing Fat32 with 27.47GB free space. What am I doing wrong as I cannot get this back to 64GB?
[Galaxy S III General] puchodog1977:
WORKED!!

this is perfect.. only took me 2 minutes and its backing up my stock rom to sd card right now!!!!

looks like it worked.. will update with any issues.
[Galaxy S III General] Andr0id7:
Thanks for this :)
[Galaxy S III General] :
http://tokiwa.qee.jp/EN/Fat32Formatter/

Nice tool for formatting fat32 larger than 32GB. :o but you could have done it also with an ubuntu live stick from gparted.

sent from the dark side of the moon
[Galaxy S III General] Jadefalkon:
Thanks, I have the same card that would not work in a Nook HD+, it's works perfectly now running CM 10.1 EMMC Native.
[Galaxy S III General] fulgeru:
thanks for sharing all this
[Galaxy S III General] JustinW3:
You're awesome OP! Gonna be throwing this link around a lot. I always see people asking about how to make it work, and I was just one of those people. When I popped it back in the phone and it read it I said "You are the man!"
[Galaxy S III General] orion411:
I've got SanDisk Ultra 64GB microSDXC formatted FAT32 with 32K cluster size and CWM can't mount it. Also can't read the contents in SlimBean or LiquidSmooth. It works fine in FoxHound, OmegaROM and Sotmax. My 8GB microSD works fine everywhere.

Any ideas why I'm not having the luck with this 64GB card?
[Galaxy S III General] DonHuan:
Which method did you use to format?

I've got this card and there're no problems with SlimBean, LiquidSmooth or CWM.
[Galaxy S III General] orion411:
YES!!! Success! Originally I did FAT32 with 32K cluster using EaseUS to get my 64GB card working in Android 4.1.2. However, SlimBean, LiquidSmooth and Paranoid Android couldn't even see it and CWM has never been able to mount it.

Found this thread and tried the HPUSBDisk.exe. After that Paranoid Android said my SD was corrupt and when I tried to format it my phone rebooted. Finally I used fat32format.exe -c32 m: and now it's working!

Thanks so much! Been working on this for hours. Was very insistent that my SD was already FAT32 with 32K clusters, but finally backed it up to my laptop and tried formatting again and fat32format did it for me. The GUI version probably works just as well and easier.
[Galaxy S III General] tones160:
Freaking awesome!!! My solution to my 64gb sd card!! Thanks dude
[Galaxy S III General] Rantanplan1980:
FAT32 with partitions over 32 gb wastes a lot of space because of TOC overhead. It's not the best option IMO.

Doesn't Android support ext4? Can't you format your SD in ext4 and use a ext4 driver for Windows to access the sdcard?
[Galaxy S III General] Burginthorn:
Life Saver! Thx heaps for this :good:
[Galaxy S III General] computerkidt:
Thanks wasnt sure the cluster size and wanted to get my SD card working with my w/e recovery i want to use :P
[Galaxy S III General] timberwolf60:
Used this method: http://xdaforums.com/showthread.php?t=1773735

Downloaded guiformat and run in pc. Cluster size 32 kb.

Send via i9505 using Tapatalk,

ROM: Stock BMG5_SG

CSC/Modem: OLBBMG1(STH)/DXUBMG5

Kernel/rec: Stock/Phil 5.07.6

SuperSU Pro 1.41, 64GB exFAT Card
[Galaxy S III General] Simonetti2011:
Just use exFAT.
[Galaxy S III General] timberwolf60:
I read on other thread that fat32 was very fast on cwm backup and restore. So I was searching how to do it and the above guiformat was the best. After trying fat32 and I back to exFAT. Still exFAT was best for S4.

Send via i9505 using Tapatalk,

ROM: Stock BMG5_SG

CSC/Modem: OLBBMG1(STH)/DXUBMG5

Kernel/rec: Stock/Phil 5.07.6

SuperSU Pro 1.41, 64GB exFAT Card
[Galaxy S III General] cejack:
GPARTED is my favorite partitioner. Would there be any disadvantage to formatting to fat32 with 32K sector size on my 64gb SD card?

I think I may have a problem with my 64GB due to it being formatted to 512 byte sector by default. Any particular reason why 512 byte sectors are not good for these SD cards?

Also, what is the disadvantage of using EXT2, EXT3, or EXT4 formats on the SD card? (Do they need certain sector sizes of 32K as well?)
[Galaxy S III General] vijer:
My S3 with Carbon 1.8 can recognize the 64gb SD card but it keeps unmounting the card. So I had planned to format the card to FAT32 and while looking for a utility to format the card (shame on Microsoft for not having built if functionality) I came upon your post. I can confirm that formatting the SD card in FAT32 seems to have resolved the problem.
[Galaxy S III General] a67543210:
You will imminently have SDXC card issues. Here is the reason why, and the solution.

1. Problems will occur once you format it to exfat or Fat32, on the long or short term.

2. Formatting an SDXC card causes it to stop being SDXC. (Read more from the SD card foundation from the link below)

Solution:

1. Do not format the card. It is an SDXC, with it`s format. Just plug it straight into your device. If your device does not support SDXC, you shouldn`t be buying this in the first place.

2. For those with compatible devices but who have already formated their SDXC into exfat or Fat32, use the formatter from the SDcard association to restore it to it`s original state. Let the formatter do it for you.

Might need to also instal SDXC driver for your OS, in order to get your OS recognise it as an SDXC card, without requesting to format it,( in which case it changes the format again from SDXC, which will sooner or later result to issues) The driver is also in the SDcard association website below.

https://www.sdcard.org/downloads/formatter_4/
[Galaxy S III General] ttxxaa:
Thanx

i have 64 gb exfat format but i need it on fat32 to use it in different devices
[Galaxy S III General] Eggsnbacon:
The guiformat linked on page worked for me. Kept the size, but changed it to fat32.
[Galaxy S III General] bender302:
Thank you to all who helped.
[Galaxy S III General] ron31:
sd format

thanks worked like a charm
[Galaxy S III General] RealityFails:
I have a micro SD 64gb it's a hc do you guys recommendit? For the s3 iI plan to fill it up
[Galaxy S III General] danarama:
All 64 GB are HC. Yes you can use a 64 GB microsd

-----------------------

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I do NOT reply to support queries over PM. Please keep support queries to the Q&A section, so that others may benefit
[Galaxy S III General] RealityFails:
My data doesn't read on it properly. Any ideas?
[Galaxy S III General] danarama:
Test the card in a card reader using h2testw.exe on windows.

-----------------------

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I do NOT reply to support queries over PM. Please keep support queries to the Q&A section, so that others may benefit
[Galaxy S III General] petrofsky77:
Need help. I have formatted my 64GB microsd to FAT32 using GUIformat, but pix in my DCIM folder keeps on getting corrupted when i open Gallery to view them. Is it a card problem, or the Gallery from my custom rom that is causing the pix to go corrupt? :confused:
[Galaxy S III General] a67543210:
You'll keep on getting corruption, sooner or later, for having formatted it. Formatting a 64gb sdhc stops it from being sdhc. It has it's own format, and needs no changing. Just plug it into your galaxy S3 and it will work without problem.

Now, you'll need to restore your card to it's original state by downloading the following from the SD card association.

https://www.sdcard.org/downloads/formatter_4/

Also read on this website, to learn more about what I'm talking above.

Most people do this mistake.
[Galaxy S III General] HeadBass:
interesting....my TWRP actually corrupted my 32GB sdcard by applying permissions fix after flashing custom rom and had to reformat it to start working again....maybe if I format the card this way I can prevent that happening next time
[Galaxy S III General] Wuby986:
you made my day with this how-to!!!!! thanks a lot!!!!!!
[Galaxy S III General] Bowmanspeer:
Just a quick note to mention I have been using a 64GB SD card for 3 months formatted in FAT32 without issue using AOSP ROMs now too. It can work.
[Galaxy S III General] krunk619:
Thanks, this work great for my 64gb micro sd card, for my Galaxy S4! :D:D:D
[Galaxy S III General] DrKaotica:
Hi all, just bought a SanDisk SDSDQUA-064G-U46A Ultra 64 GB microSDXC Class 10 UHS-1 Memory Card for my GS3.

Out of the box my touchwiz rom did not mount it, but i was able to format it with the phone, again on a touchwiz rom.

I was going to take the plunge into AOSP, but alas i tried a couple of different AOSP ROMs and none are recognizing the card is in the phone at all. Restore a TouchWiz ROM and its back to working normally

it appears to be FAT32 and (close to) 64 GB available when i open it with disk utility (try not to mac flame if you can hold back)..

Reading this thread it looks like AOSP is supposed to read FAT32 cards.. confused here..
[Galaxy S III General] Bowmanspeer:
AOSP does support FAT32. You should put the sdcard in a computer and use a third party partitioning app to reformat the card to fat32. The steps listed do work. I used the method stated in this thread for my Galaxy S4. Shouldn't be any different for your S3.
[Galaxy S III General] DrKaotica:
Yeah I ended up using a windows utility and it worked fine. Appreciate the reply!
[Galaxy S III General] poloruiz714:
GUI formatting

Does Gui Formatting also convert a 64 GB EXfat sdcard to a 32 GB fat32 sdcard?

Thanks in advance.
[Galaxy S III General] Bowmanspeer:
If you want to partition it, I imagine you can. It is still a 64 GB SDcard. Its just a matter of changing the format from the proprietary exfat to the open fat32.
[Galaxy S III General] poloruiz714:
Worked! In case some new users are curious I kept the default settings the same as when the program first open, I just pressed the format button (just check to make sure the drive location is correct). After the format was complete it worked with my aosp rom (liquidsmooth) on my Galaxy S3. Also my 64GB SD card says I have 59.46GB of usable storage. Which is pretty much the same as it was before the format.
[Galaxy S III General] hbcasurfer:
What app to reformat it?!

where & what is it?

and does phone have to be rooted?

My 64gb was working fine til I rooted using toolkit! then I unrooted due to this and another issue?

so will the app work for me too?

thanks!
[Galaxy S III General] Bowmanspeer:
When you rooted your phone, did you keep it stock or put on custom ROM? What device do you have?

Really though, you should be OK using one of the mentioned free windows apps. Stick the SD card into your computer and format it FAT32 then it won't matter what ROM you run. The exact steps aren't far back. This thread is a quick read.
[Galaxy S III General] hbcasurfer:
Info for help!

I rooted it & left it stock rom!

I have unrooted it today and reformatted the sd card! still nothing!!!

UGH!

what now! I used the sdftormatter to do it! and reloaded it with my laptop with all the data! nothing!

I'll look in the thread...but thought that is what i did with it(fat32)!

again, it is now unrooted!

help!?! & thanks!

---------- Post added at 07:45 PM ---------- Previous post was at 07:40 PM ----------

sprint GS3
[Galaxy S III General] Bowmanspeer:
I followed the steps in the OP. I have a GS4 and a 64 GB SD. I formatted to FAT32. Be patient. Follow the steps. If you don't run anything but stock there shouldn't be any issue unless the GS3 wasn't capable of handling the 64 GB SD anyway which I'm not sure of since I have the GS4. It may be that the partition manager will want to format the SD card into 2 partitions at 32 GB each. In which case, let it. Then you can re-size the partitions making one big and the other tiny. I think that's what I ended up doing.
[Galaxy S III General] hbcasurfer:
sd card

i reformatted it with the sdformatter app. it still formatted it exfat. did the complete reformatt. still will not read at all on phone! says your card is "safe to remove". that's it!

UGH! and sandsick is a waste of time, calling them!

Help?!

is there another app to use? this is not cool! i need my data available on my phone!
[Galaxy S III General] Bowmanspeer:
Did you download EaseUS program that's linked in the OP?
[Galaxy S III General] hbcasurfer:
usease?!

Nope!

But i will look for it now!

what will that do for me?
[Galaxy S III General] Bowmanspeer:
hopefully allow you to format to fat32.
[Galaxy S III General] hbcasurfer:
formatting

ok...downloaded it...think i did it!

says it now fat32.

it took a few seconds, and didn't delete data!

that sound right? what do i need to do?

thanks!
[Galaxy S III General] Bowmanspeer:
If its done reformatting then turn off your phone and put the SD card in. Boot it up again.
[Galaxy S III General] hbcasurfer:
ugh! same thing!

did i not do it right?

do i need to erase partition? anything other than do what i did? it's not very well explained!
[Galaxy S III General] Bowmanspeer:
I don't know what you are looking at unless you describe what you are seeing. You said you did it and asked what next. I was just saying...

Seriously, read. Its all there.
[Galaxy S III General] hbcasurfer:
ugh!

will have to try in morning! it shows a ton of options! i did the format partition one!

took only few seconds & said was done! but no data was erased! so maybe didn't do right?!
[Galaxy S III General] Moter8:
Not sure what you all have, im pretty ure my sd card is formatted in exFat and works fine using cwm touch.
[Galaxy S III General] hbcasurfer:
this is crazzzzy!

ok...went & got a new 64gb card today! same thing!

going to try to reformat in the morning! any ideas?

but yet my 16gb card works fine!
[Galaxy S III General] Moter8:
Hi, as far as i can remember i used gparted to partition the sd card. You could try that too.
[Galaxy S III General] tempests:
I know this is an old post, but it just saved my Butt!

Thank You
[Galaxy S III General] hbcasurfer:
Well....

Not sure what I was doing right (or wrong)...

but this morning I got the SD formatter to work for me & my card is working formatted fat32!

Thanks to all for the help!

very appreciated!

Now.....what is the best & easiest way to root my sprint GS3? LOL
[Galaxy S III General] Bowmanspeer:
The 16 GB SD card is most likely fat32. The 64 GB card brings us to the purpose of this thread. Read the steps and follow them and it will work with little variance from what's written. Take your time and also don't be afraid to try a different program beside EaseUS.
[Galaxy S III General] liaquat2020:
How to format Damaged 64GB MicroSD

I have formatted a newly purchased 64 GB Samsung Class 10 MicroSD with ExFat. After that while transferring the backup files, there was a power failure due to which the task could not be completed/ PC shut down prematurely. Now, the card is not recognised by my Galaxy Note II and it shows 254.86 GB in my PC XP3 system. I have tried EaseUS Partition Master, Mini Tool Partition Wizard, GuiFormat, etc but not able to format it. The volume amount is also varying in each tool such as FAT 32 FORMAT shows as 273 GB. Please guide me if this card is totally damaged or it can be formatted.
[Galaxy S III General] abielz:
i use AOMEI partition assistant:good: easy work!
[Galaxy S III General] romabr:
Cool.. gonna try that... mount it in CWR is very useful when something goes wrong in the ROM installation
[Galaxy S III General] erkme73:
Put it in your PC, open a dos window (cmd) and type 'chkdsk X: /F /R', where X: the drive letter assigned by your PC.
[Galaxy S III General] LastProRican:
Thankyou This helped me

I had a 64GB micro SDXC card that wasn't being recognized by my SGH-m919 this taught me a valuable lesson that I need to format memory if its not being recognized.