Zte Grand X In User Manual page 330

Air Bags
Do not place a phone in the area over an air bag or in the air
bag deployment area as an airbag inflates with great force
and serious injury could result.
Store the phone safely before driving your vehicle.
Seizures/Blackouts
The phone can produce a bright or flashing light. A small
percentage of people may be susceptible to blackouts or
seizures (even if they have never had one before) when
exposed to flashing lights or light patterns such as when
playing games or watching video. If you have experienced
seizures or blackouts or have a family history of such
occurrences, please consult a physician.
Repetitive Strain Injuries
To minimize the risk of Repetitive Strain Injury (RSI) when
texting or playing games with your phone:

Do not grip the phone too tightly.

Press the buttons lightly.

Use the special features which are designed to minimize the
times of pressing buttons, such as Message Templates and
Predictive Text.

Take lots of breaks to stretch and relax.
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