Chosen Solution

My phone keeps cutting off and on , showing the Apple sign . Then after a while it dies… I have tried new batteries . Rebooting it. And I even got a new one . It had the same problem . we took it to Verizon and they said it’s not the batterie , it’s the phone . Turns out they just wanted us to buy a new one from them … but I still have the same problem with it on a day to day basis . Please help me!

The battery or it need to flash https://youtu.be/Ri25mE6wEoM