https://centostwo.binghamton.edu/SEC/Prusa_MK3S-PLUS.html
-- Firmware 04/24 -- 3.13.1-6876 - LCD menu -> Support. Scroll down and you will see the firmware version. - Update FW mK3S+ - FW zip -- Forum - Useful Forum Topics - Awesome Prints - Replace THEMISTOR -- MK3S+ Handbook -- Prusa Models