Ender 3 4.2 7 board firmware July 8, 2019 16 32 64 128 Ender 3 silent board 4.2 7 firmware update Ender 3 pro silent board 4.2 7 firmware update Ender 3 32 bit board upgrade 4.2.7 ender 3 board Ender 3 s1 software Ender 3 s1 upgrade firmware
