Sansa Clip Zip freezes at startup

[lominisepsum]

Hello. I have a rockboxed Sansa Clip Zip 4GB with a 64GB SanDisk microSD card and it freezes at startup with Rockbox and with the original firmware. Also, the Sansa it's not recognized for the PC -Windows and Linux-. What can I do?

PD: Sorry for my engrish

[saratoga]

If neither OS can boot, probably the flash memory is really screwed up.  Try the rockbox bootloader USB mode (hold center button while booting if I remember correctly) and see if you can repair the file system from there. 

[lominisepsum]

Sorry for making you wait. I'm very busy. How can I make the player to boot into that mode? I press that combination but it only starts normally (obviusly, freezed, with the Rockbox logo and the 4.0 version advice at botton). Thank you.

[saratoga]

Turn off player, hold center button, plug in player to USB. 

[lominisepsum]

Thanks. Well, when I do that the player shows the boot screen for less than a second a then that's what I get on Windows 7.

[saratoga]

If you can get it to mount, try reformatting.  If it won't mount, its probably broken.

[lominisepsum]

Well. I tried uninstalling the player's driver and reinstalling it. Didn't work. I tried to mount the player on both, Windows and Linux, but nothing. So, I assume that the player is broken. Well, at least it tells me when battery runs out. Thanks for your help