Topic: Dead Wi-Fi board

My Xbox One was painfully slow to update last time I turned it on a month ago. Download speed was 100 Kbps to 15 Mbps, and mostly at either extreme. The Wi-Fi at home is flaky and sometimes craps itself with a 3000ms ping time on all devices until I reboot it, so I just turned my Xbox off and blamed it on the router. I don't use my Xbox much as I've been busy lately and what little gaming I do has been VR on my PC, so I didn't even bother to try again until now. Hence me discovering it was not my router a few days ago. I ordered a new Wi-Fi board that arrived today and I plan on installing it this afternoon. My Xbox One is already disassembled (thanks iFixit guides (darn that toilet paper aged well)), I hope it works again. Ethernet still works, and the console otherwise seems happy.

Edit: I should add I replaced the thermal paste on my cousin's old Xbox 360 and gave it to my work's break room a few weeks before the coronavirus hit. My Xbox One (original model) was a pain to open, but not as bad as the 360 was. I'm not replacing the thermal paste as it's a pain and not nearly as hot as my old 360. If I wasn't on half-time sick leave I'd buy an SSD to replace the 2.5" HDD. It's SATA II so the gains won't be as much as sticking an SSD into a PS4, but still much better than the HDD if you are interested.

Heh, I put the new one in with the same issue. It's possible I messed something up replacing it but I doubt it. Probably yet another eBay seller who sent me another broken part.
4/30 update: Seller offered return. I bought another replacement board from another seller that didn't work either. I also bought a replacement riser cable to no avail. Someone with an Xbox One X said they moved from a surge protector to the wall and that fixed their Wi-Fi, I moved mine and no results. When this is over I will try a friend's power brick and see if that makes a difference. The motherboard looks fine, nothing looks blown, solder joints look good. Capacitors under the APU hum when I plug the console in, and get very hot, but that seems unrelated.
5/8 update: Unplugging the power brick for several minutes, wall end first, followed by Xbox end after light goes off, fixed it for one power cycle. When plugging it in the capacitor hum and wah noise lasted much shorter but still happened. Next reboot the Wi-Fi issue returned. Probably the power brick's fault.