My form 2 currently has rc-1.18.12-58. I mistakenly thought I should update to the latest preform before upgrading my firmware. MY MISTAKE. The latest preform 3.0+ doesn’t even see my printer, so I can’t upgrade the firmware. OK so I go back to preform 2.20, and it too can no longer see my printer, so I can’t upgrade the firmware.
How do I upgrade the firmware without preform, get preform to see my USB connected printer, or get a version of preform which will see my printer?