Third Party > Repairing and Upgrading Rockbox Capable Players

Sansa Clip+ Problem

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SURPLUS_NiNjA:
I have rockbox installed to my Sansa Clip+ for using a 64 gb microsdxc.  It worked perfectly for quite some time however recently for unknown causes it does not work so well.  It rarely boots to a way that can play music.  It either never gets past the splash screen with "Rockbox boot 4.0" or boots to a screen that says "Plug USB cable".  On occasion it boots through the "Rockbox boot 4.0" gets to the version I have installed 3.13 but when I get into the menus the font is different and it says it can't find the database.  In this instance it lets me navigate the folders but doesn't show any files. Occassionaly it boots to *PANIC* mount: 0. And most rarely it boots to 3.13 how the font used to be and works just fine.  When booting it in the stock software it simply says "FAT32 is corrupted please plug to usb and" I can then get it into connection mode however my PC can't seem to interface with it in anyway except show that it is connected. Which is more than with Rockbox where the PC isn't even aware its plugged in.

The MP3 does the same thing regardless of if the SD is inserted.  I don't think my SD card reader can read SDXC because when I plug it in without the MP3 it just says it needs to format it and then says windows cannot complete it.

toehser:
For the formatting, a special utility is needed, when using Windows.  Windows (some versions) won't let you format a 64GB card to FAT32, which is needed.  I don't know what that utility is, since I use Linux, which doesn't have that limitation.  There are threads on here that mention it, though.  Some card adapters can't handle 64GB, also.  I test for that (in Linux) by doing a raw write to the whole card, some adapters fail at 30GB.  Again, I don't know how to test this on Windows... On Linux, I do something like "buffer -i /dev/zero -o /dev/sdb -p 75 -m 10m -z 256k" and watch the output, if I have any doubt about an adapter supporting 64GB.  Then I use gnome-disk-utility (?spelling - it used to be called something else) to format it.

About the odd intermittent behaviour - it could be the player is failing, anything that comes and goes suggests real hardware problems.  I would try re-installing all of rockbox from the utility, including the bootloader, and see if that helps... I would also clear out everything from the drive that is left over, make a clean start of rockbox and see... but... if it really is a flaky hardware piece... 

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