New Ender 3 not working,homeing is way off

i have a new Ender 3,the one that’s now discontinued.it’s brand new and i have an older Ender 3 that works fine.the new one has a Microswiss hotend on it but for some reason it did not take the microswiss offsets.so after 2 days of messing with it it now says Ender-3E on the main screen and it will not print and the home is way off.i tried looking for firmware to get it back but i have no idea which one to use.thanks for any help i can get.

After switch ON the ender 3 - the normal way by select Auto Home is that the z-axis is lifting up some
distance and the x-y axis move to the end position switches.

If this ist not happening, please check 1st the cables/plugs for the end-position switches. For Example the Y-Axis have one Plug for the Nema Stepper Motor and a bit hidden on the backside there ist the Plug for the End-Position Switch.

I hope it is helping.

Cheers

Elmar