Ender 3 blue screen of death - reflashing not working
Got an Ender 3 since May, made some prints whitout any big issues, only some stringing, but yesterday was cleaning the nozzle with a metal brush. I turned on the printer to melt the sticked filament to clean it. No problem. Turned off and when I turned on again get the blue screen.
I looked for some fixes and everyone said to flash the firmware. My board is a 4.2.2, get the firmware from here and Marlin web, compiled the Marlin firmware, formated a SD card and put in the firmware. I tried with both firmware, from here and marlin one, changed its names to firmware-xxx.bin or firmware1.bin or firmware2.bin after unplugin and plug again the printer, and nothing works.
I don't know what to do next, I hope not to have to buy another motherboard.
@kakomena If you need to check the blue screen is the problem of the motherboard or the problem of the screen. https://forums.creality3dofficial.com/3d-printer-display-screen-issues/