How does force reboot simulate disconnecting the battery in a smartphone with an unremovable battery?

Question

My android phone wouldn’t turn on until I force rebooted it. Is force rebooting the same as the old school method of removing the battery (a regrettably rare feature these days)? If so, how can an electricity-reliant device’s software simulate a battery removal without actually cutting the power?

In: Technology

Answer 1

One part of the system, close to the battery, cuts off power to the rest of the system, but retains power to itself.