APK Installation Failed: [INSTALL_FAILED_VERIFICATION_FAILURE
Fleeting- External reference: https://stackoverflow.com/questions/15014519/apk-installation-failed-install-failed-verification-failure
APK installation failed: [INSTALL_FAILED_VERIFICATION_FAILURE
need to disable verification of the APK during ADB install. If the setting in Security is greyed out or isn’t working as it should try shelling into the device and, depending on which settings database the setting is in per your API level (Global, System, Secure) run
$ adb shell settings put global verifier_verify_adb_installs 0
Sometimes you will need to disable the package verifier as well using:
$ adb shell settings put global package_verifier_enable 0