Found a better firmware that works with Ender 3 V2 Neo!
This is an overview, tutorial, me ranting and being all over the place.
https://github.com/mriscoc/Ender3V2S1
*Start G-Code for v2 Neo (Just copy and paste to Settings, Printer, Manage Printers, Machine Settings):
; Ender 3 Custom Start G-code
G92 E0 ; Reset Extruder
G28; Home all axes
M420 S1 Z2 ; Use mesh level upto 2 mm
M104 S{material_standby_temperature} ; Start heating up the nozzle most of the way
M190 S{material_bed_temperature_layer_0} ; Start heating the bed, wait until target temperature reached
M109 S{material_print_temperature_layer_0} ; Finish heating the nozzle
G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed
G1 X6.1 Y20 Z0.3 F5000.0 ; Move to start position
G1 X6.1 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line
G1 X6.4 Y200.0 Z0.3 F5000.0 ; Move to side a little
G1 X6.4 Y20 Z0.3 F1500.0 E30 ; Draw the second line
G92 E0 ; Reset Extruder
G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed
G1 X5 Y20 Z0.3 F5000.0 ; Move over to prevent blob squish