Sandisk Sansa Clip - Unable to delete music files, format or update firmware

Hello, I have the Sandisk Sansa Clip from 2008. I took it out after a while and tried to erase the older music files on it, but to no avail.
Windows 10 says the file was deleted and it even shows in the recyclebin, but after unplugging the device, the files remain
I even formatted it using the option in settings. The files were deleted but they quickly came back after i restarted the device.
I was wondering if someone could help me fix this as the old music files are very low quality and i would like to remove them

Hi @WinnerWind,

Please contact the SD Technical Support team for best assistance and troubleshooting: