No filament selection in CFS if print from USB

Flagship K Series
1

Hi, My K2 PRO can not select filament in

CFS when print from USB flash drive

but work normal when print from local file.

2

Which firmware do you use?

As not everyone uses the same version, it could be version related

3

Continuing the discussion from No filament selection in CFS if print from USB :

Hi, I am using the latest update firmware and this problem happened soon after I am updated.

the other problem is now I can not print via WIFI , the machine take the file but it did not print so I go to touch screen and print from there.

Is anybody have the same experience like me? and how to solve this problem?

This time I try to reflash firmware with old one maybe work?