I have an application which registered to push-registry for in coming message on port 50001

App is very much stable and works in many phones. I had installed it in my 2690 phone around 20 times.

Every time I tried installing new one, i got conflicting application and I used to delete older version and install the new.

Now my mobile doesn't have that application (I have removed) and I am trying install it but i am getting "Conflicting Application Show details?" with yes or no options.

If I choose "Yes" set is getting restarted and choosing "No" simply exits installation. Finally my application is not getting installed.

Now I am trying to install the version that was working fine on this set. I have tried doing factory settings, restarting phone.

Please help me to install my app as used to do before.