//www.wenxuezihua.com/forum/viewtopic.php?t=56013
Use UP Studio v2.5 if you are using an original model CPU. The newer v2.6 doesn’t communicate properly with the legacy machines running the old non-wireless CPUs.
The Gcode compiler in UP Studio still has issues that need to be fixed, so it may not work properly.
I remember the retraction value needs to be multiplied by 10 as well as a few other values to get it working the same.
