Click the links and ew the Setup and Configuration Videos for Ender 3 V2:

Unboxing:

Service tutorial Ender-3 V2 unboxing and operation

Fixing:

Service tutorial Ender-3 V2 clean the nozzle with needle.

Service tutorial Ender-3 V2 clean the hotend throat with needle.

Accessories:

Service tutorial Ende 3 V2 the mainboard replacement.

Service tutorial Ender3 V2 display replacement

Service tutorial Ender-3 V2 fuse wire replacement.

Service tutorial Ender-3 V2 power supply replacement.

Service tutorial Ender-3 V2 power supply replacement.

Service tutorial Ender-3 V2 replace the axial fan.

Service tutorial Ender-3 V2 replace the blower fan.

Service tutorial Ender-3 V2 replace the hot bed.

Service tutorial Ender-3 V2 replace the sprinkle kit.

Service tutorial Ender-3 V2 the heating tube replacement.

Service tutorial Ender-3 V2 the socket and switch replacement.

Service tutorial Ender-3 V2 X&E-axis motor wirings replacement.

Service tutorial Ender-3 V2 Y-axis motor wiring replacement.

Service tutorial Ender-3 V2 Z-axis motor wiring replacement.

Service tutorial Ender-3 V2 replace the thermistor.

Firmware:

Service tutorial Ender-3 V2 flash firmware.