Getting back in to computer repair and branching out to mobile devices.
"I can’t push my vacuum on the carpet"に関する回答The screeching noise could be a bad belt. The belt attaches to the motor and spins the rotating brush head. Hard to say without make and model. Not sure why the performance would be affected in different rooms. Is the vacuum height adjustable? Could be thicker/taller carpet in one room vs. the other.
"KERNEL PANIC - Boot "keep looping" - GPU Failure?"に関する回答Have you verified the system date? Make sure the date is set correctly in terminal (access in recovery mode) there's a specific format like MM:DD:HH:MM:YY. I would google to make sure. Hope this helps.