/diy/ - Do It Yourself

>>1576839
Before an Ender 3 can have the firmware updated a bootloader must be installed. It's a pain but only needs to happen once. You attach an Arduino to the mainboard and do some hacky stuff. There are videos of it on youtube. It's not hard, just time consuming. New Ender 3s may be different.

Also whistle: 2 of 3.