Strange effect with Shahe scales

[Yuriy]

Hello all
Can you tell me if a solution have  been found for the shahe 5404 linear scales?
I have used the 200mm and it's seems to work fine but I need to buy a 600mm and before I would like to know if this last one will work fine or if need a update firmware.
Thanks a lot

Hi,
Not yet. I ordered a scale from AliExpress again and am waiting for it to arrive. 

Thank you
Yuriy