I have developed a warehouse delivery app (track and trace) for Android handheld scanners with Flutter and Objectbox as local database. After few months I changed my OS from win10 to Ubuntu 21 and reloaded my project from git. A few days ago, after making some updates to the app, I created a release version and sent the apk file to the client via Skype. Since I hadn't changed the package name I thought my new version would just update the old version, but unfortunately it removed the old program and installed a new version with the raw database. Their information was very important, so I need to restore the old database and use it instead of the current raw database. I will be very grateful if any professional can help me with some way to restore the previous db.
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