Cobra wrote:
You mentioned you tried to update with no success. Did you try a complete uninstall/reinstall?
I have two tablets running Android 7.0 that are able to run the latest version (11.0.x).
Ditto on this advice. Uninstalling first, is the #1 fix for this issue when it happens. Sometimes the device gets stuck in a bad state when trying to do an upgrade, where it only half-uninstalls the previous version, leaving you with nothing - until you do "Android Settings -> Apps -> iFly GPS -> Uninstall" first before installing it again.