Qt Symbian Memory, unexpected application termination on device

Hi,
Recently I did develop a Symbian application. In Qt simulator it works perfect but in actual device the application terminates unexpectedly. I suspect this is a memory leak issue.
Already i have followed all possible(following) memory cleaning mechanisms:
[LIST][*]Creating new objects as pointers[*]deleting the objects after use using 'delete' keyword.[*]using deleteLater() function on ui objects[/LIST]

But still the application terminates on the device.

Please suggest me possible solutions for this.

for solutions, you would need to find the actual reason first. so do these two things:
1. Get the panic code: [url]http://www.developer.nokia.com/Community/Wiki/Extended_panic_code[/url]
2. Find out the line which is causing the crash