 Hey guys, it's Kevin. OK, this is the second part. I'm going to show you how to install the motherboard back to WF3640 and Thras3620. I'll use this worksheet and I'll put the link above. I'll also put a link for the video that you uninstalled the motherboard. So this is actually the second part of the video. So we put the motherboard back again. We'll skim on the screws, but we'll emphasize on the wiring. By the way, on the worksheet, you have to read backwards. So you put it short and long USB screws back. Then you install the two big screws. Put the Wi-Fi card back with cover. And then install the four big screws on each corner. OK, now we put the motherboard on the printer. There are three things to be careful. One is the black thing has to be behind the optical sensor. And also the ground wire and all wires cannot be blocked by the motherboard. And you need to push the fax, you need to back a little bit. So we bend the wire forward. Make sure you see that the ground wire. Last time I hide the ground wire behind the motherboard. So I have to uninstall it and install it back again. OK, as you can see, the ground wire looks good. Now I push the fax unit back a little bit. And the black thing fits right in between the fax unit and the optical sensor. Now the four screws that secure the motherboard. In this one, I removed the bent metal. And so there actually should be five screws to install. The shorter screw is for metal to metal. And the longer spinal one is for the metal to plastic. Here's the metal to metal. The deep one and the two screws in the front. OK, we're going to work on the top of the main board on the back. GGW means gray, gray, and white. So gray, gray, and white. And the small W, it means the head is white with a white head. And there are three FFCs that are FFC from paper feed and from WIC and from fax. Just remember small, medium, large. So the paper feed is smaller one. So we put it down first. And all three FFCs, the blue side is facing the front. And then we'll get one thin FFC all the way to the back of the motherboard on the top. Then we'll have a three-fat FFC with iron core. To install the side cover, put the bottom tab in first. Then you kind of swing it, turn it, and until it clicks. And one screw for the side cover. And the LCD panel has FFC cable. And the KRK means black. Then you have a wire that's black and red. And little white means yellow with a yellow head. And then you have a ground wire to install. And then two screws to install the front LCD panel. Now we do the ground. And notice for the WF3620, there are two things it doesn't have. I refer to your workflow. So you can see 3640 will have a red socket. And also it will have an FFC socket. But 3620 doesn't have it. So FCC for the WF3640, not 20. And power. By the way, those numbers are there corresponded to the numbers on your flowchart, the pictures. I mean, number four on the picture is exactly the location for number four here. Four is KKR. So it's a black wire with a red head. Number five, KR with a white head. Number six, black-red wire with a black head. Number seven, black-black wire with a black head. Number eight, black-red wire with a red head. Put the cover back and install the seven screws. But before you install the seven screws, which is secured at the scanner's hinge, let's take a look of the scanner's hinge. The top of the hinge should fit like this. Do it a few times until you get it. Then it will become your signature. And you can fit it right in. And close the scanner and it will lock in place. See it again? You need to bend back the scanner a little bit. So you need to bend it back a little bit. OK, there we go. And now it's snap. And now it's wearing time. So K, black-green white with a white head. And I call this a big green. Number three, black-red with a white head. Put it next to the black. We got a colorful four wires with a white head. And a black-red with a yellow head. Number six, don't forget to put that iron core back to the FFC before you install it. And lastly, the number seven ground. Don't forget you got two black ground wires to share the same screw. Put a fax cover back and two screws on the scanner and two screws on the fax cover. And that's all, folks. Go to run. Cheers.