To perform a clean direct upgrade of an APK to a new version via Package you need to ensure the following:

- The APK version must be incremented to a higher version from the previous. It cannot be the same or lower

- The APK must be signed with the same signature as the original APK

- The bundle ID (com.x.y) must remain the same

- The existing Package for the existing APK has to be modified with the new APK and also incremented from a version perspective.

Were all of these criteria met?

Well it's not an Android - it's Windows CE. It is a higher version increment. 

Ah, completely missed that. It's rare to see net new configuration changes or updates being made on Windows CE devices these days! I'm afraid I can't be much help in this case. 

Appreciate your willingness to help!

Hi Kevin,

can you show what you are doing in the Script.

My experience is that when the Application is Runnig it made Problems with updating the runnig application on WM /CE.

Marcus,

Appreciate the help here. I don't have anything in a pre or post install script. I would agree with your call on the program running causing the issue, but we're having the issue even if we do a hard reboot the program is still failing to install.

Hi Kevin,

could it be that you execute an Script in the "Pre-install" Script what should be switched into the "Post-Install" Script. when the package is on the Device what you try to execute.

I think when you reinstall the package the needed Data is allready on the Device ?