ricardo.a3
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Joined: Sep 04, 2017 7:19 am
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Can’t Access Service Menu - 1.03 procedure not working

Jan 15, 2019 8:16 am

The procedure to access the service menu in the 1.03 manual (p.15) is not working for me.

The steps it says are:
1. Load all five filaments according to instructions in the previous chapter.
2. Open the ​printer’s​extruder idler.
3. Turn on the printer and wait for initialization.
4. Press and hold the ​middle button on the MMU2,​and press the ​printer restart
button​at the same time. Wait until ​LED 1​(green and red) and ​LED 5​(red) light up ,
then release the buttons.
5. Use the ​left button​to select ​LED 4​(it will light up).
6. Press the ​middle button​to confirm the selection and load the filament into the


This is what I’m seeing at step 3 and on:
3. Initialization happens (I wait for the Original Prusa and three dots screen to go away)
4. I press the X and middle button at the same time. LED 1 and LED 4 light up as explained.
5. Letting go of the x button and middle button, the printer resets and the MMU clicks, and I am not in the service menu.

ALTERNATIVELy, I can select LED 4 if I HOLD the x button but let the middle button go.

I am not able to get the filament loaded so I can calibrate. What am I doing wrong?

Latest MK3/ MMU2 software.

ricardo.a3
Posts: 2
Joined: Sep 04, 2017 7:19 am
Contact: Send private message

Re: Can’t Access Service Menu - 1.03 procedure not working

Jan 15, 2019 9:22 am

Update: I got it, but I think what confused me were some differences. First, holding down the “X” did not work as advertised for me when I let it go. I ended up just holding the middle button to activate. Second, the fourth LED did not light up as claimed, even though I was in the service menu.

I stumbled into the service menu almost by accident. It really isn’t clear, and while I’m not an expert, I’m not a novice user either.

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