I had the same issue. Check if the tube inside is well flush on the nozzle, a small space in betwen that ptfe tube and nozzle will have a clog. I solve this by tightening the 2 screws between hotend part and radiator in order to close the gap with heat break. Check also if extruder is not break, some crack happend to mine and I change it by metal one.

@rattlehead Yes you are right, even if i set up temparature above 120 C° with pronterface, the temperature decrease by 10 C° and fluctuate.

@Tateburgess01 said in How to unbrick your Creality Box:

The link is broken for me too, where is possible to get it ?

@Yolanda Please can you help?

Dear All,

By checking the 16 spacer between the bed and the carriage. I noticed that their dimensions vary between 13.82 and 14.12 mm or 3/10 mm gap.

Did you notice the same thing?
And is ABL able to compensate for this type of gap?
I always have some issue with bed leveling, may be it's one of the reason?

I would like to try with silicon spacer but with rigid solution (3D printing part) with same dimension should be work?

What's you'r advise?

@rattlehead Yes you are right, even if i set up temparature above 120 C° with pronterface, the temperature decrease by 10 C° and fluctuate.

I had the same issue. Check if the tube inside is well flush on the nozzle, a small space in betwen that ptfe tube and nozzle will have a clog. I solve this by tightening the 2 screws between hotend part and radiator in order to close the gap with heat break. Check also if extruder is not break, some crack happend to mine and I change it by metal one.

Successfully flashed the 1.0.10 version into display and board. But I have some questions.

1. Why during the auto leveling the temperature drop at 120 C and goes down at 110 C during process?

2. The autoleveling has to be done with cold bed or hot bed ? I always do it with hot bed on my Ender 3 V2, so I don't understand why is not the same in case of CR10 smart.

3. How can used the Aux leveling, there are 5 points but no possibilities to adjust mecanicaly?

4. How can adjut PID, there is no autotune?

5. I like to have a sound for start and finish print with M300 function in start and end gcode, M300 seem to be not activated in the firmware?

I adjust X axes, tighten all screw, but continue to have bad bed levelling.

Thank for your help.