Lutyr Official Creality New Upgrade Motherboard Silent Mainboard V4.2.7 for Ender 3 Pro 3D Printer

I recently upgraded the motherboard along with many other components of my stock Ender 3 Pro. My favorite is this "silent" motherboard; it's very strange to be able to hear just the fans and not the loud whirring/grinding motor sounds as the print progresses. Installation is fairly simple from v4.2.2 board to v4.2.7, as all of the motor headers and wire screw terminals are in the same location - it's literally just a straight swap from board to board. I do recommend crimping ferrules on the tinned wires for board power, bed and nozzle heating, as the solder that's placed on the wires does sometimes fail and cause power issues. A tip I found on Reddit I believe: use rubbing alcohol to remove the glue on the plug headers when you pull the plug off the old motherboard. I'm sure other techniques can work but rubbing alcohol is super easy and doesn't risk extra damage like a heat gun would.

All of the cables were easy to swap over and now all I hear is fan noise so I can easily sleep at night with my printer running at the same time.

I hardly know it's running when I leave the room. I should have bought this 2 years ago. Installation was straightforward. Buying this was a "no brainer".

My Ender 3 V2 stopped reading SD cards, which I assumed meant the slot was broken. I read about the upgraded board and decided to try it. I'm intimidated by electronics, but managed to replace this on my own in about 30 minutes. It was much easier than expected. The SD reader works now, plust the USB connector is type C. The machine runs quieter, too. I'm very glad I got the new board.

Board did not come with instructions, it did have a buisness card with a QR code that was suppose to go to instructions but they did not work and their is a few differences in the layout and how things connect that are important to know like the main board fan and how the bl touch is connected. Once I got it installed figuring out how to install firmware was another flaming hoop as most non Creality tutorials don’t include all the steps. It took me 5 days to find out about renaming the file, changing the number every firm attempt and changing file allocation size during format. Now my current problem is finding the correct firmware. Creality has 4 websites so I don’t know which is their actual site. I have the 5 pro with bl touch, so I’ve downloaded every 4.2.7 with bl touch v3 and non of them have worked. Either the bl touch will flash or the screen will chirp etc.