I have an Ender-3 that I upgraded. First I added the filament run-out sensor. Finally got that to work properly. Had to figure it out on my own after insufficient assistance from the customer service person. Today, the rest of my upgrades came in. A CR Touch auto bed leveler and a 3D Mini Pad (touchscreen). After another hour of finally acquiring the correct firmware and updating it, I have a printer that will start up and do nothing. The only thing I get is a little blue pop up in the upper left corner that says "Not Connected ". And now I can't get help from customer service as my questions go unanswered. Now the numbers on the bottom come up as 0/0. Before someone mentions that all of it can't be done on my printer, I went through customer service to get the correct parts for the upgrades. Hope someone here can be of better service.