Folks, I have this too on my Moto G5S Plus after the April security patch for Nougat. No notification shade when I plug into the PC. No way to access MTP, ADB, etc... I also effects my charging. After the MTP interface fails, I have to reboot the phone before it will charge again.
Post in the Moto/Lenovo forum please. It's a HUGE problem.
Originally Posted by dburckh
Just got the Oreo 8.1 update on my Project Fi Moto X4 (Motorola Version: OPW28.46-13). The phone does not show up in Windows anymore. No MTP, no ADB. It does charge. I've tried it on two different PCs. It was working seconds before applying the update. The cable does work properly with an S8.
Anybody else seeing this?
I'm a professional Android developer and I was using the phone for development before the update. The other issue is that Developer Mode was disabled after update. I re-enabled it after 8.1 and it didn't work. I've disabled/enabled USB Debugging and developer options several times.
Tried on OS X now too, same issue. OTG does work.