1) In Good Lock Sound Assistant, setting to 100% Vocal is not getting saved in Equaliser preset. It goes back to one level below after every reload.2) Need an option to use different Equalizer preload for each app.
Switch off the phone. Charge to 100%. After full charge, turn on and use until it phone shuts down by itself. Do not turn on and charge till 100%. This should fix the issue. Then you can turn on and use normally.
Heat generation will cause motherboard issue. Display strip will come off. Green line issue. Also, yours is base model which does not have enough cooling mechanism as Ultra. (Hotspot user for more than 5 years). My note 8 went dead after 4 years with...