Why does the phone behave like this?

Question

Android

So, I have a Meizu MX4 32gb phone, it was a little over a year old when it started to lag violently. I reset the settings, formatted, tried to flash it, but it did not work out. The antutu benchmark shows that it has dropped UX i / o performance (up to 500) and UX image process (up to 500). I gave it to repair, where they said that the button was stuck in it, they ordered a new button, etc., in general, after 2 months they did not find the reason, I took it away, asked what to repair. They said that his central processor was broken, such as find a donor and bring it. So, I took it: it was completely discharged. Came home and started charging. I turn it on. He doesn't lie! I'm testing in antutu: UX i / o performance has become more than 2500 birds, UX image process is 850 birds (unfortunately, it has not risen higher). Maybe this is related to that I downloaded No-frills CPU Control and configured something there somewhere? Maybe, but when he started to lag again (before that I downloaded toys from the Play market), I again tested in antitu: his performance fell again. Reboot didn't do anything. I waited for it to be completely discharged by turning on the 3D game. Turns off. I turn it on, start charging - again it does not lag, the benchmark shows the usual results. In general, I probably will not go to programmers, but to testers. Please explain this behavior of the phone. I just can't find an explanation for this. Thank you for reading. I start to charge - again it does not lag, the benchmark shows the usual results. In general, I probably will not go to programmers, but to testers. Please explain this behavior of the phone. I just can't find an explanation for this. Thank you for reading. I start to charge - again it does not lag, the benchmark shows the usual results. In general, I probably will not go to programmers, but to testers. Please explain this behavior of the phone. I just can't find an explanation for this. Thank you for reading.

Answer 1

It is possible that the chip has fallen off, when the contact is warmed up, the contact is temporarily restored.
Try to discharge, let it cool down (several hours) and turn it on.