vivo mobile automatic switch off problem, vivo phone automatic restart problem 

vivo automatic restart problem,
vivo automatic on off problem,
vivo auto restart problem,
vivo auto on off problem,
vivo auto switch off problem,
vivo mobile automatic switch off problem,
vivo mobile auto restart problem,
vivo mobile automatic on off problem,
vivo phone automatic switch off problem,
vivo phone automatic restart problem,
vivo phone automatic on off problem