My phone suddenly got a black screen after few seconds only samsung galaxy was written on screen, I thought it was restarting but no it hanged I waiting couple of mins upon noticing nothing is happening I pressed power and volume to restart it thankfully did...why did the phone hang this never happened b4, is everything OK with phone...plus sometimes my stops superfast charging only charges normally and the time left for complete charge disappears only shows percentage(still charges)s21 ultra
Don't know about the black screen but that charging problem happens with me too and i found a solution. It happens because of your phone getting hot. Unplug the charger and don't use the phone for a few minutes or until it cools down. Then plug the charger in and it will charger Super Fast and Time left will show up.
