how to upgrade my custom android application which will not be released to the Android market?
<p>I tried several links but no one has given any appropriate answer. Scenario is something like :</p>

<p>I have my custom .apk file with version 1.0(let's say) which is already installed in android device(we are not using Android market to install it) and later point of time we have to release the same .apk file with some fixes of application bugs. So is there any possible way to upgrade pre-installed android application without uninstalling it?</p>

<p>Please provide some possible suggestion.</p>

<p>Thanks, piks</p>
