As it says in the description, when installing in CRX, the board must be flashed under CRX. Don't forget the Touchscreen file (Flash) either. I don't have BL touch installed, I like old school pumping. I didn't get the 5 fin version of the driver but there were 5 voltage regulators on the board and I didn't have to adjust the voltage rating for the motors. Calm? Oh yeah! Now my PSU fans and the motherboard fan (drain) need to be replaced. All in all it's a version 2.2 board and now my CRX has the Creality 1.70.1 firmware which I had to flash a couple of times (tried CURA first. no) then xloader and it worked. I've only been printing for a year and a half (54 years), I'm happy with what I got out and my original board and firmware died. So this worked for me. It's been a year since I bought this board and I'm having problems with the Z direction. I bought and adjusted as many Z Stabilizers as I could get my hands on. I made marks on the support beams to make sure the gears are stable. I still have a z-lag that I can't fix with either the machine or the CURA 4.7 and 4.8 slicer. So. I'll remove this board and try another one.
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