Recently, the wireless charging on my Google Pixel4 stopped working. I blamed the wireless charging pad but it wasn’t until I travelled back to Europe and wanted to use my wireless payments that I noticed the NFC was also not working.
It now turns out it’s due to the back of the phone being slightly detached from the rest of the phone. It’s hardly noticeable, especially since I always keep it in a silicone case but removing the phone from the case revealed the right side (when the phone screen is away from you) to have a slight gap that I can run my nail through. Pressing down on the back immediately fixed the problem and at least the wireless charging is working once again. I hope adjusting the case will hold the back down hard enough. Other reports have users opening the phone, bending the pins and then trying to glue the back to the phone … for now, things are working again by just pushing it back down. Otherwise I will try duct tape.