I get “Enter the generated digital code.” message upon trying to log in, but the mobile app gets no login request.
When i try to enter code manually it just disconnects me (BLZ51914400)
Tried disabling the authenticator, reinstalling the mobile app and deleting cache but nothing helps.
Any ideas?
Where are you trying to log in, Biggiesmall?
From the look of it, the error you’re getting (BLZ51914400) can happen if your game isn’t up to date.
FIXED!
OP here, just entered my email and password manually on the login screen, then entered the authenticator code manually and got in.
Perfect! 
And thanks for providing the details on how you managed to fix this.
well yeah that works but why am i forced to manually log in when there’s a battle.net app and i also have to enter some weird captcha 5 times coz i cant read it, no issues logging into retail from the app