Pls house I'm in need of urgent help. My Nokia 7.1 goes off every now and then. Don't know what the problem might be..

@ chuksvoice
My Nokia 7.1 has an inbuilt ba3. I don't know but I doubt the fault is from the ba3. Like I said earlier, I have barely used the phn for a year, as it goes off, sometimes indicating phn shutting down in less than 10-15mins. Though a friend asked me to factory set the phone, but I don't know if that will help.

Pls I need urgent help. My Nokia 7.1 goes off while in operation. I barely operate it for 10 - 15 mins before it goes of. I've done phn upgrade and have downloaded antivirus but to no avail. I'm worried, I need help pls. What could be the cause I've barely use the phone for a year. And pls note, it's not a ba3 issue..