Android version and others things changed in Settings >System > About phone

References
http://forum.xda-developers.com/showthread.php?t=1948558

Editing /system/build.prop ...taking risk, without a previous ROM backup:

Before
ro.build.version.release=4.4 After
ro.build.version.release=4.2.2
It works ok after reboot...

I have the idea to change it to android 5.0 :-)
With that result I am no longer afraid to change ro.* properties and to try if Google Play no longer complaints about compatibility  ...
So I change (I decided to use the model where it was working with badadroid)

-ro.product.model=GT-S8500
-ro.product.brand=samsung
+ro.product.model=316
+ro.product.brand=dingcheng
-ro.product.manufacturer=samsung
+ro.product.manufacturer=dingcheng
-ro.hw.version.custom=MT6572
+ro.hw.version.custom=MT6589

After reboot, system info is updated

But clearing data and cache from Google Play app, app is not working, so it may be resolution ...

Update: I change model to G7108 in order to clarity ... two GT-8500 devices with a fake one is a little bit confussing