To make the BLTouch work, the Ender 3 needs BLTouch enabled firmware, which you need to burn in the micro controller. There are 2 possible options: Use the official, precompiled firmware from Creality ...
Automatic Marlin builds for the Ender-3 with the stock creality 4.2.2(512K) board. You can find both stable and nightly (bugfix-2.1.x) downloads on the repository ...
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