Brand new, just out of box Z8 Pro, crashes Play Store trying to install Facebook and won't ever boot again (stuck at the ZTE V8 Pro logo) if it remains installed and you restart the phone.
I've cleared the cache.
I've factory reset.
I've installed B19.
I've updated every Google service.
I've tried reinstalling Facebook multiple times.
...but if you try to install Facebook, Play Store crashes, Facebook is left half installed, the phone starts freaking out, will crash your launcher, and unless you uninstall Facebook before restarting the phone, it'll never start up again (without a factory reset).
THIS IS NOT ACCEPTABLE
I lost HOURS of work having to reset the phone, including losing my just-moved Google Authenticator install, so now I've got to key recover all across the internet.
PROVIDE A FIX.
I can't do anything more than use your device exactly as delivered out of the damned box.