How to troubleshoot when the Pad reports an error "mcu: Unable to connect"

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[@ryckyto7460]

Thanks for this tutorial. After a while, my V400 stopped working, but I've got it up and running again.

[@Zac-fp8oz]

Hello. I there any way you could help me with my FLSun Speeder? Please?

[@flsun3dprinterservices]

HI.You can directly contact our after-sales email :[e-mail]

[@Jpson67]

I get the mcu error and have followed all these steps and the motherboard lights up as it should, still I get the mcu error after a while into the printout

[@flsun3dprinterservices]

Hello friend
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I will answer it specifically for you.
Have a nice day!

[@Clay20208-Gaming]

Well done

[@flsun3dprinterservices]

Hello friend. May I ask if this video is helpful for you? May I ask if you have encountered any problems in the video?

[@Clay20208-Gaming]

I had the mcu has shutdown... proplem too so i contact the shop and the promplem was the thermistor so maybe this canbe helpful too(in the video) but i solved the proplem with changing the thermistor.