I have recently replaced my phone's screen, and ever since, my phone has kept randomly turning off. It would let me turn it back on, and it didn't say it was low on power or anything. However, it kept happening more and more frequently. I opened my phone up and noticed the problem gets resolved when I reporition the connector for the battery, but the second I screw everything back in, it disconnects again like it isn't staying attached to the connector. Neither the cable from the battery or the connector on the board look damaged so I'm not sure what to replace.