Can't log into pokemon go?

Pokemon has stopped working since I got my new cell phone.

When I start it it says the whole time: Authentication failed, try again later.

I did not install the Google play services because I have a huawei psmart 2021 and it doesn't exist there, but I don't need them for pokemon go anyway.

I've already tried everything from reinstalling to clearing the cache and changing account data, but none of it works.

I would appreciate any help!

I had this problem too. Go through all authorizations in peace. For me it was because of some authorization that I hadn't given Google. Does Pokémon work on Wi-Fi? And how are you registered? Coach club? Facebook or Googel

I'm registered with the trainer club and yes it works in the WLAN

So anyone have the solution? I have the same problem with matepad t10. Unable to authenticate no matter i sign in with FB or Google.