Moto G5 XT1670 constant reboot and audio problem

[rodegaston862]

Hello, 2 weeks ago my xt1670 went out for no reason, when re-igniting it constantly restarted, entered in recovery mode, clear data and cache, twice... but it didn't work, I downloaded the "Lenovo moto smart assistant", Reinstall the same operating system and it didn't work either, I thought it could be a problem with the batteries, I bought a new one, but it wasn't the problem, When I finally got it on and kept going like this, after leaving it off for a long time, notice that the audio wasn't working, the videos made an error back when I tried to play them, I had to plug on a headset to make it work, but after a while restarted for no reason again, I don't know if it's a an audio codec problem, Energy input or something else, help me please.