Aoa everyone . I have found a solution as this happened to my A51 too. This solution may work with other devices as well. 1.Open any two apps ( in my case i opened Internet Browser, and Tor Browser, but you can try to open any two apps ). then from the Recent button on the bottom left of your screen, lock these two apps, so they don't get killed and remain open all the time. Your restart problem will be solved. This worked for me . Do let me know ,if this works for you as well
