How to use Alternative Cores

How do I install an alternative MEGA65 core?

If you hate reading, watch this great video tutorial on YouTube from Oliver Graf.

• Turn the MEGA65 off.
• Copy the .cor file for your Model of the MEGA65 on a Micro-SD card and insert it into the MEGA65 (either internal or external slot).
• Press and hold the NO SCROLL key in the top row at position 5.
• Turn on your MEGA65.
• You should now see a list of 8 slots, numbered 0 to 7. You can install a Core into any of these, but it is recommended to keep Slot 1 for the MEGA65 core. You can simply overwrite the contents of any slot with new versions or different Cores.
• Press the CTRL key and the number of the slot you want to install to.
• Select the .cor file for the Core on your Micro-SD-Card and confirm installation.
• Do not reset or turn off the MEGA65 for the next minute or two until you see a confirmation message on screen.

More info can be found in the MEGA65 welcome guide posted here: https://dansanderson.com/mega65/welcome/updating-core.html or in the official documentation.

How do I run an alternative MEGA65 core?

• Turn off your MEGA65.
• Press and hold the NO SCROLL key in the top row at position 5.
• Press the number key of the slot of the core you want to start.
• When you reset the MEGA65 with the Reset button, the Core you have chosen will stay active. If you turn the MEGA65 off and on again without pressing NO SCROLL, the Core Slot defined as the default core will be loaded and run.