Android App Incompatible on google play only for certain devices

Question

This is the link to my google app QuizByte

The app was developed for android api level 13 and above. after publishing some of the phones (Samsung Duos(GT-S7262) )which should be compatible cant see the app in google play. sending a direct link to the phone to email and checking shows that 'this device is no compatible'.

I searched and tries everything I can Tried adding and removed unused permissions but still no luck.

And when I upload it into google play it shows lots of samsung and sony(which should be compatible) in the incompatible-device list.

Thank you.

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

.

<uses-feature android:name="android.hardware.location" android:required="false"/>
<uses-feature android:name="android.hardware.location.network" android:required="false" />
<uses-feature android:name="android.hardware.location.gps" android:required="false"/>
<uses-feature android:name="android.hardware.touchscreen" android:required="false"/>
<uses-feature android:name = "android.hardware.screen.portrait" android:required="false"/>
<uses-feature android:name="android.hardware.faketouch" android:required="false" />

.

Compatible devices were increased (~+500) when I added in manifest But it still shows not compatible with sony and samsung models

Answer 1

Made it working after Changing the minimun SDk Level to 9. Now its showing in the samsung sony devices,

Dont know the exact reson though.Thought that Someone with a similar problem may try this