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Head tohttps://builder.mega65.org/job/mega65-core/job/development/where you can find all development cores.
Any mega65-core from development branch dated October 10, 2023 or later should work.
Download the correct file for your MEGA65 model:DevKit, batch 1 and 2 owners : mega65r3 core
Batch 3+ owners (MEGA65 received in 2024+) : mega65r5 core
Unzip the core package after download and copy file ETHLOAD.M65 (in /sdcard-files) into the root folder of your SD card.
Install the core in slot 1-7. If you are not familiar with how to install a core read this Article.
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