[T-Mobile Samsung Galaxy Note II] Admiral Sir Manley Power:
I’ll try to keep this as short as possible. This instruction will be for Window OS, via command prompt.

This is for those of you who are just having whatever kind of issues with your Micro SD cards. Phone won’t detect it, it’s not showing the correct storage size by some huuuge amount (like a 64 GB card is only showing 27 or something….), etc etc… it won’t mount, anything. Also, it is important to understand a few basic things…

If you have a 64 GB card, it’s default file system should be exFAT. If you tried to format it with FAT32, that is likely the issue you are having with it not reading, or showing incorrect database size. If that is the case, you need to do a full format, and repair it per these instruction.

ANYWAYS... here. we. go.

1.Pop the micro SD card into some type of card adapter for either your USB, or you SD slot on your PC. A message window will pop up asking you what you want to do, etc etc… if you don’t want to pull anything off the card for backup purposes, then just close it.

2.Open a folder somewhere (like on your desktop for example). After you do this, you will see on the left side, a list under “computer” there will be “C:\” some others, etc etc… your SD card you popped in should be there as well. For this example, let’s say windows has called it “F:\”

3. Right click on F:\ … select “Format…”

4. Now it will give you some options here. It will tell you the file system type that the card is currently formatted to. Make sure “quick format” option is checked, and go ahead and format it.

5.After it is done, safely unmout the device by clicking the little USB icon (with the green check mark) on the bottom right of your screen (on your tool bar) and select the option to eject that particular storage device. Pop it back in your phone. If this solved your issue, stop here. If you are still having problems, continue reading.

6.Take the card out, and follow steps 1, 2, and 3 again.

7.This time will be a little different, and will take MUCH longer (depending on the size of your card). After you select format to bring up the format tool window. This time you are going to UNCHECK “quick format”. All cards that are 64 GB should be formatted to exFAT. 32 GB and below should be FAT32 or whatever the default was for your card. I am pretty sure the note II is supporting exFAT file systems native, now. So you should be good there.

8. Now after you have unchecked “quick format”, go ahead and proceed with the formatting. Leave everything else default.

Now the waiting game… this can take up to two hours… So find something to do, lol.

9.After it is done, follow step 5 of this procedure. Pop SD back into your phone. If this didn’t fix your issue, proceed to next step, if it did, stop reading.

10.For this next part, it will require command prompt work, and please pay close attention.

11.Go to your desktop, and on your desktop, create a file called “disk_repair.txt” this needs to be a text file. So when you right click on the desktop to create the file, select “new” and then select “text file”

12.Click your windows icon on the bottom left of your screen, and the “search programs and files” box, start to type “command prompt”… you will see it pop up at the top. When it does, RIGHT click on it, and select “run as administrator”… it might ask you for your windows password, it might not, I can’t remember, but self-explanatory what you should do if it does ask.

13. After you open command prompt, pop the micro SD card back into the computer. It might ask you to format it again, who knows, freaking windows ikr. If it does, just do the “quick format” option and it will go pretty quick and then you can continue with the next part.

14. So again, let’s assume the computer reads the storage device as F: and then let’s assume your windows user name is BATMAN (type whatever is relevant to you… if the storage device shows up as Z: or M: or WindowsSucks: then enter it accordingly into the command I am about to give you… but again… for argument’s sake… it is F: and you are “BATMAN”

15.So, how… do we killlllll…. Then batman???? Rofl jk…

16. type this command into your command prompt… exactly as it is, then hit enter.

chkdsk /F F: > "C:\Users\BATMAN\Desktop\disk_repair.txt"

17. After you do this, you will see an ouput. If everything is good, you will see something like this in the output:

The type of the file system is exFAT.
Volume Serial Number is 9CD4-E720
Windows is verifying files and folders...
File and folder verification is complete.
Windows has checked the file system and found no problems.

62364672 KB total disk space.
0 KB in 0 files.
128 KB in 1 indexes.
0 KB in bad sectors.
256 KB in use by the system.
62364288 KB available on disk.

131072 bytes in each allocation unit.
487224 total allocation units on disk.
487221 allocation units available on disk.

18. If it is showing errors, or you are still having problems, go to your desktop, open up that little file you created, and your ouput will be written to it. Upload it here so we can look at it.

That should be thorough enough.

Can anybody verify that the stock kernel supports exFAT file systems? Or if any kernels do, which ones? That would be useful information to have in this thread. I just didn’t have time to go digging around for it. This took like 10 minutes to write up I was waiting for my food here at Togo’s. lol