I was at China & tried to load Pokemon go. The sign in screen pops up asked to sign in. However, I wasn't be able to log in at all as the screen keep loading forever. When I came back Hong Kong, I'm unable to load the app anymore. The app just shut by itself as soon as I try opening the app.

I cannot log in or get into the game no matter how long I let that screen load. The funny thing is I'm able to log in & use the app in other device.

This is what I have tried:

Deletted App & reinstall app Restart Phone Turning off and on WiFi Turning off and on Airplane Mode Keeping loading screen on for a LOOONG while.