CR-6 SE is not func...
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CR-6 SE is not functioning after firmware upgraded

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Joined: 10 months ago
Posts: 2
Topic starter  

I upgraded the firmware, CR-6 SE Upgrade Package V2.0.1.3_202012. When I try leveling, the heatend is continuing to push against the heat bed. The heating does not work.

New Member Registered
Joined: 8 months ago
Posts: 2

Same Problem here. You got that fixed somehow?

My Nozzle keeps running into the heatbed like a jackhammer and my heatbed and/or nozzle won't heat up anymore.

MB 4.5.3

Tried to upgrade to

Something went really wrong here.

Any suggestions?



I installed this firmware:

now it seems to be working properly again. 

Bed leveling did work, printing the first object after the update now.

This post was modified 8 months ago by Night2k5

New Member Registered
Joined: 8 months ago
Posts: 1

hey all

i updated the firmware to from this site with the mainboard 4.5.3 and the heating was also not working.i flashed the firmware twice to double check everything is okay. after the second flash i was confused because the printer was new at that moment. i took the firmware from this site :

--> CR-Series --> CR-6 SE 3D Printer and downloaded the latest mainboard and display firmware.

inside the zip package you will find 4.5.2 mainboard (C & E version) and 4.5.3 mainboard (C & E version) and 9-language firmware. i took the last one because i switched the printer to my language.

There you will find for 4.5.2 HW and 4.5.3 HW. i took CR-6SE - V2.0.1.3 - HW - V4.5.3(0127).bin flashed and the same with the display. Now the printer works again and heating is working like before.

i hope you get your printer working again. for me i will stay at the stock FW so far i can.

New Member Registered
Joined: 8 months ago
Posts: 3

Doh, I did not see your post before I posted mine, but I ran into exactly the same problem 🙂 and went for the same solution 😀

So, there really must be something wrong with the firmware...


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Joined: 6 months ago
Posts: 3

@atbler Thank you so much for posting this. I have never been more frustrated. DIY shouldn't mean "DIY while trying to guess which firmware actually works, while simultaneously trying to make sure you are understanding the directions provided because the translation is so poor"

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Joined: 5 months ago
Posts: 7

Thanks for posting this.  Had the same issue with no luck with official files from this site but those worked.

Head crash and heating.