Who I have the same questioned this topic

Accepted the update and now my Motot Z2 Play is stuck at a flashing blue powered by Android screen.

Troubleshooting attempted so far:

Held down the power button for 10+ seconds, phone vibrates and blue screen reappears then continues to flash

Held down power button and Home button with the same results.

Unable to pull the battery from this device and so very frustrated. I never should have hit ok when I was prompted for the system update.

Any suggestions?