Floppy Drive does not work (even after replacing it) Disk is unreadbale, formatting failed

Hello everyone,
I have some problems with my Whole HOG 2, system starts and works normaly, but the floppy drive is not able to write or read the discs, it reacts on commands but everytime I try to save or load, the message "Disk is unreadable appears" (patching the system even fails), if I try to format it, the massage "Formatting failed pops up. I allready exchanged the floppy drive to a new one. Can anyone help me with this?

Best regards Franek
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