To flash a boot-loader and new firmware we need a program called progisp.exe we can find this in the zip file we can download from the Creality website the direct link is progisp.exe that comes with the Creality firmware pack.
USB ISP this one is being shipped with the BL Touch Kit from Creality.Creality Ender 3 Pro + BLTouch v3.1 + Marlin 1.1.9.1Īfter having a lot of problems with the default firmware from Creality I started to look for an alternative and found a working solution.
