Default [Q] Photon Q accelerometer

Hello all. Does someone knows, where is Photon Q accelerometer on motherboard located?
My problem is: phone always in landscape mode and newer go to the portrait mode, as if the QWERTY-keyboard all the time disclosed.
All time the landscape picture on display irrespective of the phone position in space.
Here is photo of motherboard Photon Q and chips that I think is probably accelerometer.
Motherboard Photon Q photo