On Friday my pixel 3a started vibrating and would not stop until I turned it off. Upon restarting I lost all cell service. Have not been able to restore service. Have tried removing sim card, clearing cache and restoring settings. Phone still vibrates randomly and only stops when I lock and unlock phone.
Best answer by Robert T
Could it be related to this : https://www.reddit.com/r/GooglePixel/comments/a9oqe1/pixel_3_random_vibrations/