Sansa Fuze v2 broken after upgrade to 3.13

[DrSpychology]

When I upgraded from 3.12 to 3.13, my sansa fuze broke. It gets stuck on the bootloader (ver. 4.0) for some reason. If I try to boot into the regular mode, it says that FAT is corrupted and I need to connect it to a PC to recover it. The problem seems a bit strange, since 3.13 worked fine the first time I checked, but I put some music on the SD card and all of the sudden it's corrupted. I can't get the player to get connected to the PC either, whenever I put it in the USB mode that it defaults to after it's plugged in, windows file explorer straight up crashes. If I use the rockbox bootloader USB mode, it doesn't get recognised. Did it somehow break, or can I still fix it?

EDIT: took the micro SD card out, it still works fine. Tried removing all the music I added today, but it doesn't make a difference

EDIT 2: Now it's literally telling me to panic. There's a white screen that says
*PANIC*
mount: 0

[saratoga]

Mount the disk in the sandisk firmware and check the disk for errors.

[DrSpychology]

Mount the disk in the sandisk firmware and check the disk for errors.

Tried that already, but the disk either doesn't get recognised in windows file explorer or file explorer just crashes. I've heard the noise that the player connected to the PC, but I can't get it to show up.

[Serenity]

With the Fuze plugged in under the Sansa firmware, after the noise sounds that it's plugged in, right-click on My Computer, select Manage.
Select Device Manager and then in the main window on the right, the USB Controllers list.
Figure out which one on the list is your Fuze
Right-click on the Fuze and select Uninstall.
Unmount (if Windows doesn't by itself) and plug out the Sansa
Wait a few seconds, then plug it in again and see if Windows will reinstall the drivers. 

This may help, but it may not.  But it sounds like the internal memory on the Sansa is somehow corrupted (for one of many many possible reasons), so once Windows recognizes it, scan & fix the internal memory.  And maybe the SD card as well.

Good luck!

[DrSpychology]

With the Fuze plugged in under the Sansa firmware, after the noise sounds that it's plugged in, right-click on My Computer, select Manage.
Select Device Manager and then in the main window on the right, the USB Controllers list.
Figure out which one on the list is your Fuze
Right-click on the Fuze and select Uninstall.
Unmount (if Windows doesn't by itself) and plug out the Sansa
Wait a few seconds, then plug it in again and see if Windows will reinstall the drivers. 

This may help, but it may not.  But it sounds like the internal memory on the Sansa is somehow corrupted (for one of many many possible reasons), so once Windows recognizes it, scan & fix the internal memory.  And maybe the SD card as well.

Good luck!

Thanks, but it didn't work unfortunately. I uninstalled it and when I plugged it back in the second time, windows displayed the "installing drivers" bubble and when it was finished, I tried finding it in My Computer, but it crashed once more.

[rba]

try to format the Card with allocation size of 64k

Read this page:

http://forums.rockbox.org/index.php/topic,32221.0.html

[DrSpychology]

try to format the Card with allocation size of 64k

Read this page:

http://forums.rockbox.org/index.php/topic,32221.0.html

Don't see how this would help anything, the MicroSD card still works perfectly and is now sitting in my phone, so that I can listen to my music at least. Also, the thing doesn't boot up, so it doesn't even get to checking the card

[Klappis]

I have the same message with my Sandisk Clip+ running Rockbox 3.13 with Windows 8.1. When booting with the normal Sandisk firmware it works perfectly.