How to install android 40 on gt s8530?

— This phone is running a different operating system than Android. It does look...

— This means that the device can't be upgraded using Kies. You should use the OTA...

— The phone is using Bada as its and unfortunately won't allow you to install any...

— In order to manage your phone you will need general software which has been...

— The latest firmware update for Samsung Galaxy Ace Duos is 2.3.6 Gingerbread....

— The latest version of WeChat compatible with the version of Android installed...