Turn on Location services
Turn off Airplane mode
Restart the device
Enable GPS permission for the app
Set Location mode to High accuracy
Check for obstructions to satellite signal
Move to an open outdoor area
Toggle GPS off and on
Update the app
Update the device software
Clear the app cache
Clear the app data
Reset network settings
Check date and time settings
Disable battery saver mode
Remove and reinsert the SIM card
Test GPS in another app
Calibrate the compass
Check for hardware damage
Factory reset the device