The algorithm used by the camera is not entirely clear, and while the photos it produces are generally satisfactory, they are not always sharp. In certain shots, the electronics cause a great deal of interference, and the resulting images require unnecessary adjustments. There is a manual mode, and you are responsible for figuring out how to use it; however, why do I need this!? I got it to work, and that was that; however, for more serious shooting, there is an SLR available. I noticed this on the Amazon SIM card, and I heard it once on the "body 2," but I didn't understand the nature of the appearance at the time. When you turn on the speakerphone, after a while, a "quacking" appears, as if the speakers can't cope with a strong sound. This is something that I noticed on the Amazon SIM card. It's possible that it has something to do with the strength of the connection. But more often than not, I noticed it with "Amazon," and I attribute it to a disadvantage with a big stretch, because I did not understand the connection or the jamb of the device. We'll see what happens in the future, but I think the connection is the problem. And it was still visible after the screen had been turned off. It wasn't through WhatsApp that it took place. But I will say it again, I believe the operator.