I developed an android application using Flash Builder.
Version 1.0 has been created with an old certificate (.PFX file).
That certificate is expired.
So I create new Version 1.1 with a new certificate.
But when I try to install the new version, the following message has been displayed.
Application not installed: an existing package by the same name with a conflicting signature is already installed.
There is a simple solution: Uninstall first version (1.0) and install the new version (1.1).
But I don't want to lose my application data which is created by 1.0 (old version).
Could anyone please suggest a better solution?