Hello !
On my IIc :
- No problem reading floppy disks
- When I try to format (from Copy II+ by example) : heavy noise from the drive then message indicating that my floppy disk is certainly write-protected...
- And if I delete a file on the diskette, it is rendered unreadable...
And same problem with my external drive that I cleaned.
To sum up, no reading problem but impossible to write on the floppy disks...
If anyone has an idea...
Thanks in advance !
I haven't had that problem, but I was flipping through SAMS Troubleshooting & Repair for the Apple II and saw that it had a section on "reads but does not write". It may not be relevant to you since you have a IIc, but I hope it helps. You can read the full manual online here: https://archive.org/details/sa2p2etarg/page/154/mode/2up
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sams-troubleshooting-155.jpg