I'm owning a CR-10S since December 2019. In January I installed Octoprint on a RASPI 3B+.
Connecting it to my Printer brings up a Security Warning where I learned that I have to change the firmware on the printer.
I studied a lot of tutorials and found that flushing the latest Marlin Firmware would be the right solution.
What worries me is that some turorials say I'd first to add a bootloader to the machine others just connect a PC with Arduino IDE and flash it on directly.
Maybe the experts here can help me:
Does a CR-10S 300 from 2018 have a bootloader on board or not?
Can I somehow detect if a bootloader is already there?
Thanks in advance!