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Hi bkrzysiek,

Thank you for this post. I would like to ask few questions.

I have the 32bit Trigorilla Pro version motherboard. My firmware is 1.4v (i checked from display). Anycubic support states that i can not make a firmware update because they don't have it since it is not a open source firmware. But i found the firmware at https://github.com/derhopp/Marlin-with-Anycubic-i3-Mega-TFT . it actually has a statement that it is compatible with Anycubic i3 version 1.4. I can successfully compile the file but when i try to upload it, i come across an error of timeout. So is it possible to make a firmware upload or not?

If it is possible, I want to update the firmware for two reasons:

I'm changing the hot end with e3d v6 and i want to make auto PID, save the PID parameters to EEPROM so i need to enable EEPROM settings.This is not a must since i think i would be able to submit the PID parameters to gcode start instead of saving it to EEPROM.

Second reason is that, i've insulated the heat bed and i want to PID tune it. The way it is now is not stable at all. There is a lot of under/overshoots. I want to make PID tune but whenever i try to PID tune it by sending "M303 E-1 S60 C8", it heats hot end instead of heat bed.

i would really appreciate any help. Thank you in advance.