You can turn on Power Mode, medium power save mode is what I use 24/7. If you are low on battery and need it to last even longer you can use Maximum power saving and it only lets you use certain apps like messages and calling. Also, dark mode and blue light filter reduce the brightness, helps out a lot. Closing out your apps, and optimizing your phone daily will help
... View more
So I've had my note 9 for about 2 years and it's never given any problems until just a few days ago. I pretty much only charge my phone at night so when I'd put it to charge it immediately heat up, froze, and then it would just reboot. It did this every single time I had it charging. I just left it alone because if I tried to use it while charging it'd just get super hot and reboot again. There were no pop ups or anything that made me think something an app might be causing this except when I would optimize the phone it always said there were 2 apps it had to shut down. So I uninstalled unnecessary apps, I cleared the cache partition, manually reboot the phone, yet nothing helped. It's the last thing anyone wants to do but I ended up backing everything to my Samsung account and Google One. I factory reset the phone and logged back in to my accounts, it's like nothing even change, but now it doesn't even heat up, no more freezing, no more rebooting on it's own, and if anything if feels a little faster. If you have a similar issue try doing everything I did, I wish I would have known sooner!
... View more