In Fastboot screen on phone, while command window is "Waiting for device". A YouTube tutorial suggested to just unplug and replug phone. Unfortunately, now Windows recognizes phone only as unknown USB device. No charge light indicator - does this mean my battery is quickly depleting? If it conks out am I bricked? Of my 4 options (Fastboot, Recovery, Clear Storage, Simlock) will any get me back to my previous status without any help from computer?