Write down from the control-panel manual https://cncu.co.za/EasyRoute-CNC-Router/EasyRoute%20CNC%20Control%20Panel%20Manufacture%20Manual.pdf : page 51 Tool Change Parameters (re-calibrate video https://youtu.be/MpIgJMLFMSk page 52 Velocity Parameters, page 53 machine-debug and spindle parameters.
Download the latest zip whose name contains Blank from https://cncu.co.za/EasyRoute-CNC-Router/Firmware/ onto a freshly formatted USB root. In System Core Menu: delete parameters, update public, update system. Reboot; do not home; re-enter settings; reboot again.
If a new controller is required after a failed upgrade: https://buythis.co.za/r-panel-atch and https://buythis.co.za/r-keypad-atc