Pokemon Go is stuck on an old phone
Solution 1:
You don't need to sign out of your old device to log in on another one. Just sign in on the new phone.
If you still can't log in after resetting your password, contact niantic here: https://support.pokemongo.nianticlabs.com/hc/en-us
Solution 2:
If your old phone is an android device you can use a mouse to control the screen, provided that the screen still displays an image.
Here is a video on how to do so:
You will need a small cable, it will need to be the same as the charger for the phone and female USB on the other end:
Micro USB
Solution 3:
So long story short, I can access my account again. The account I have had since launch date. The secret to getting this sorted out is contacting support here: [email protected]
I was only able to find the email address by going to the app store.