I have been on PoGo but i haven’t been able to access the game due to “GPS Signal Not Found” even thought i have High Accuracy and my mobile data on. I have a lot of the methods on the internet like, Force stop your game, clear cache and then restart PoGo.
Turn on location for Pokemon go in the settings (if you have Apple)
It is always on for me and I’m using Android
Make sure you have good connection, log in log out, reinstall, and clear cache.
Then try again
Turn on bluetooth and wi fi scanning.
See if it helps.