1) Is there any way to operate torch when your phone is off, basically to be able to use your torch while your phone is off, so that your torch is the only thing utilising battery and not the system, this for incase of emergency. If it is not possible to use the torch when your phone is off, can we use it when the phone is in deep sleep? basically my target it to use the phone as a torch while using the most minimal amount of battery.
2) On Xposed there is an app by wanam - Xposed torch, it allows you to use the torch without turning on the screen, now is this particular app waking the device from sleep or not?
3) For worst cases scenarios can we flash a system which only allows the torch to run via the buttons and nothing else, like this can be used via multirom and save battery