Y-Axis moving only backward

Yesterday I got finally my new A350 and today I’ve put it together. I uploaded the newest firmware and tried to calibrate. During auto-leveling the heating plate is stuck in the back position. I tried to move it manually in the control menu and also out of Luban, but the plate moves only backword. When I turn the printer of I can push the plate forward but when I turn it on there is the same problem again.

Can anybody help?

Hey @lkessler, there had a few people similar problems, you should contact support@snapmaker.com

Also have a look at this thread:

Yes I have seen that and I already wrote an email to the support. I thougt maybe somebody can help here. Thanks for writing!