APK installation failed: [INSTALL_FAILED_VERIFICATION_FAILURE]
You 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 … Read more