Suddenly, after 1 year and 6 months since its purchase, my phone stopped working properly. I was pressing the power off button to unlock the screen, but it didn't work...after a while it opened by its own and I was able to use it properly but I couldn't lock it again!

After that, the phone started rebooting without stop!

I managed to reset it by the settings but it didn't get any better.

Battery is charging properly and the percentage of it is the right one.

Is there anything I can do?

Can you make any guess what's going wrong? Is it fixable or I should start mourning on my Huawei?

Thanks :)