Ensure that your application complies with the Symbian Signed Test Criteria before submitting the file for certification. Also, if the file is intended for Nokia Publish, verify that the application complies with Nokia Publish requirements.
When you are ready to submit your application, check that the package uses the correct UIDs:
Start > Qt SDK > Symbian Belle Qt 4.7.4 > Qt 4.7.4 for Symbian Belle Command Prompt
cd C:\Sources\Application
C:\Sources\Application> make distclean
C:\Sources\Application> qmake
C:\Sources\Application> make release-gcce
Note: After you change the application UID, you must use the developer certificate-key pair that you receive from Nokia Publish support for testing. Self-signing cannot be applied when UIDs from the trusted range 0x2xxxxxxx are used. For more information, see UID.