MEGA65 Welcome Guide
15.3 Keyboard slouching and sticking Help key
My MEGA65 arrived with its keyboard appearing to slouch below the top case a bit on the right-hand side, and others
reported something similar. The spacebar appeared not vertically straight with the top case, and some people reported
that the Help and F13 keys get stuck on the top case when pressed all the way down.
I was able to repair mine with a Phillips head screwdriver. I opened the case and noticed that the screws holding the
keyboard to the top piece could be driven further. Careful not to apply too much pressure, I tightened these screws to
match the depth of the screws on the lefthand side. This repaired the issue for me.
15.4 Jammed floppy disk pathway
Some owners reported that a floppy disk inserted into the disk drive gets stuck when ejected with the eject button. I did
not personally encounter this issue, but others reported success repairing this issue by tightening or loosening screws,
similar to the other case fit fixes.
See Issue: Floppy drive eject button and/or inserting floppy disk stuck for more advice.
15.5 C64 cartridge and peripheral compatibility
It is a known issue that not all Commodore 64 cartridges and peripherals work with the current MEGA65 hardware
and ROM. The development team is working continuously to improve compatibility over time, well beyond the known-
limited C64 compatibility of the original C65 prototype.
Join the #compatibility channel on the Discord to discuss any compatibility issues you have found!
15.6 Boot failures with blinking blue LED lights
If the MEGA65 fails to boot its operating system, it will blink the LED lights on the machine in a blue color. This may
indicate a problem with the core being loaded. Turn off the power, then hold the No Scroll key and turn it on to access
the core selection menu. Select a known-good core, such as the factory-installed core in slot 0.
I mostly see this when trying to boot the C64 core. In most cases, I just need to try again and the C64 core will boot
successfully.
94 Chapter 15. Known hardware issues
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