Quote:
Originally Posted by jberd
The latest android stable (2020.01) won't install on one device and installs but doesn't run on my tablet. The same problem with the previous nightly build. Is anyone else having a problem with it?
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That happens if you're trying to update from a apk with different signature. For example: update from F-droid to a github/rocks apk, update from a debug to a release apk, update from self-signed apk to any other.
You can remove the apk without loosing any configuration as long as you do not remove the /sdcard/koreader folder, where shared preferences are stored.