So my rooted phone has been vibrating recently for no reason. I googled it and came up with "power down, reboot to recovery, navigate with the buttons to wipe cache, then reboot".
I did that, selected yes to continue, and it's been doing this for a while. I'm ticked because I usually research everything pretty heavily and did not this time. What should I do now? How long might I expect this to take?
T-Mobile Note 2, unlocked AT&T Note 8, LTE Nexus 7