Copio y pego de la wep de greenify:

7. For different features, you need to run slightly different commands (without quotes) in the shell/terminal/command-prompt to grant the corresponding permission:

Accessibility service run-on-demand:
adb -d shell pm grant com.oasisfeng.greenify android.permission.WRITE_SECURE_SETTINGS
Aggressive Doze on Android 7.0+ (non-root):
adb -d shell pm grant com.oasisfeng.greenify android.permission.WRITE_SECURE_SETTINGS
Doze on the Go:
adb -d shell pm grant com.oasisfeng.greenify android.permission.DUMP
Aggressive Doze (on device/ROM with Doze disabled):
adb -d shell pm grant com.oasisfeng.greenify android.permission.DUMP
Wake-up Tracker:
adb -d shell pm grant com.oasisfeng.greenify android.permission.READ_LOGS
Wake-up Cut-off: (Android 4.4~5.x)
adb -d shell pm grant com.oasisfeng.greenify android.permission.READ_LOGS
adb -d shell pm grant com.oasisfeng.greenify android.permission.WRITE_SECURE_SETTINGS

8. Force stop Greenify to let the granted permission take effect. You can either do it in system "Settings - Apps - Greenify - Force stop", or execute this command:

adb -d shell am force-stop com.oasisfeng.greenify

9. (Optional) If you don't need the USB debugging functionality any more, you can disable it for security reason in "Settings - Developer options". It will not affect the granted permissions to Greenify (until being uninstalled).

Mas info aquí:
https://greenify.uservoice.com/knowl...-some-features