Zenfone5 unlocks the screen on low strenght sinal zones

Hi guys, i have a T00j, and i have a stupid big that is really annoying. When i enter on zone with poor gsm signal, like an underground floor, the phone turns on and unlocks the screen, if i have the phone in my pocket it starts pressing menus or calling people, sometimes it goes to settings and you can imagine the problem...
Already tried the updates, hard resets, the phone had it board and screen replaced under warranty and the problem stays on.

Anyone had this? Any idea to solve it?

Thanks!

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