Hello friends,
I want to tell you that the mi a1 camera is not perfect for portrait mode. because in this camera zoom is not acceptable. And other side on of them camera is not work if you don’t understand, so you can experiment this let start camea and back finger in on of them camera so display is not black that showed that the one camera is lens but doesnt show back ground and you capture the photo the back ground is not perfect blur. So you need to make smart blur photo edit with any photo editing softwere like Picsart, Snapseed etc.