UM2 extended Can not upload firmware any more

[herman-wouters 1]

I replaced the servicescreen because the flat cable was spontaniously broken.

 

After replacing the scrren is working again, but I cannot move the bed any more.

I get a ER05.

I tried to upload the firmware again with Cura 4.5. but cura cannot make contact with the printer any more.

Than I set my printer on the original manufacturing settings.

But again Error05

 

Please help

[herman-wouters 1]

I can move the motors by hand and the Zstop is working

[Torgeir 228]

Hi Herman,

 

Have a look into this tread:

 

 

Thanks

 

Torgeir