See Pokemon Go Guide Chart.
IF device not compatible/ can't install
>Check Android OS and system apps up to date.
>Try having the apk version of game then check google play
(Not reccomended)
>Parsing error means device is really not compatible
IF AR mode problems
>If your phone does not have a gyroscope you are limited to AR-Off mode when catching Pokemon.
IF "FAILED TO DETECT LOCATION" or "GPS NOT AVAILABLE"
>Check:
Settings>Developer Options> Mock Locations> OFF
Settings>Developer Options - TURN OFF
Settings> Location Services> ON (High Accuracy)
>Make sure your Wifi is turned on even if you are using cellular data - 3G 4G
>Also try resetting your network settings.
>Try to settle down for a while so your gps can track you
>Server may be down
IF no pokemons,pokestops and poke gyms
>Check app version, then your internet, then gps.
>Check Android OS and system apps up to date.
Server may be down sometimes so try playing later.
>Sometimes it is because of your location.
>Check Android OS and system apps up to date.
>Try having the apk version of game then check google play
(Not reccomended)
>Parsing error means device is really not compatible
IF AR mode problems
>If your phone does not have a gyroscope you are limited to AR-Off mode when catching Pokemon.
IF "FAILED TO DETECT LOCATION" or "GPS NOT AVAILABLE"
>Check:
Settings>Developer Options> Mock Locations> OFF
Settings>Developer Options - TURN OFF
Settings> Location Services> ON (High Accuracy)
>Make sure your Wifi is turned on even if you are using cellular data - 3G 4G
>Also try resetting your network settings.
>Try to settle down for a while so your gps can track you
>Server may be down
IF no pokemons,pokestops and poke gyms
>Check app version, then your internet, then gps.
>Check Android OS and system apps up to date.
Server may be down sometimes so try playing later.
>Sometimes it is because of your location.