How to install an app on Samsung Galaxy GT-S6802 duos mobile?

Hello,

 I am having a mobile phone of Samsung Galaxy GT-S6802 Duos.

I made my first app with corona sdk and also built the app and saved the .apk file to this mobile. It is trying get installed as it showing the progress bar too, but at last showing “App not installed” error message.

It is having the following configuration:-


Operating System: Android 2.3.6 Gingerbread

CPU Processor: 832Mhz Single-Core ARM1136


Please let me know how can I resolve this issue and oblige me thereby.

Thanks.