TOS 1.04 Cause Floppy malfunction?
Posted: 10 May 2026 18:13
Hi
I've just upgraded the TOS on my STFM to the Rainbow 1.04, using the six rom set purchased here. Previously I had a disk with Sundog on it which was just about the only one of all my floppy disks to still work. Now the ST can't read it. When I format a 720k floppy on a PC and copy files to it the ST can not read it, if I try to format a previously working disk from a PC on the ST it fails and becomes unusable both on the ST or PC. I have another ST disk which the ST reads ok sporadically.
Is there something I may have missed or broken when taking the ST apart during the TOS upgrade or is this just coincidence?
Any ideas much appreciated. Thanks.
I've just upgraded the TOS on my STFM to the Rainbow 1.04, using the six rom set purchased here. Previously I had a disk with Sundog on it which was just about the only one of all my floppy disks to still work. Now the ST can't read it. When I format a 720k floppy on a PC and copy files to it the ST can not read it, if I try to format a previously working disk from a PC on the ST it fails and becomes unusable both on the ST or PC. I have another ST disk which the ST reads ok sporadically.
Is there something I may have missed or broken when taking the ST apart during the TOS upgrade or is this just coincidence?
Any ideas much appreciated. Thanks.