MMU2 Firmware Update Error - Could not open port: COM7
Hi. I am fairly new to 3D printing and got a used MK3S with MMU2. It hasn't been used in several years so the firmware is very out of date. I was able to update the printer firmware just fine but when I try and update the MMU firmware I keep getting this error:
avrdude-slic3r -v -p atmega2560 -c wiring -P COM7 -b 115200 -D -U flash:w:0:C:\Users\mlee2\Downloads\prusa3d_fw_3_8_0_MK3S_1_0_6_MMU2S\prusa3d_fw_MK3S_3_8_0_2684.hex:i
avrdude-slic3r: Version 6.3-20160220-prusa3d, compiled on Dec 12 2023 at 15:27:27 Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright (c) 2007-2014 Joerg Wunsch
Using Port : COM7 Using Programmer : wiring Overriding Baud Rate : 115200avrdude-slic3r: ser_send(): write error: The semaphore timeout period has expired.
avrdude-slic3r: stk500v2_send(): failed to send command to serial portavrdude-slic3r: stk500v2_getsync(): can't communicate with deviceavrdude-slic3r: Could not open port: COM7
If anyone has any suggestions they would be much appreciated!
RE: MMU2 Firmware Update Error - Could not open port: COM7
Are you using prusa slicer as the programmer?
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: MMU2 Firmware Update Error - Could not open port: COM7
Yes I am using prusa slicer
RE: MMU2 Firmware Update Error - Could not open port: COM7
Are you sure Com7 is the correct port?
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: MMU2 Firmware Update Error - Could not open port: COM7
Hmm what id recomed doing is installing arduino ide then go tools port then see what ports are there 1 and 3 are default so leave them but the one thats not 1 and 3 is the right one. Then go to prusa slicer and chose that com port.
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RE: MMU2 Firmware Update Error - Could not open port: COM7
Also forgot to mention the printer is on and the mmu has power right
Please help me out by downloading a model it's free and easy but really helps me out https://www.printables.com/@Hello_474427/models
RE: MMU2 Firmware Update Error - Could not open port: COM7
That seems to have worked. Thank you!
RE: MMU2 Firmware Update Error - Could not open port: COM7
That seems to have worked. Thank you!
Yep you had com ghosting. All good.
Please help me out by downloading a model it's free and easy but really helps me out https://www.printables.com/@Hello_474427/models