Samsung Galaxy Z Fold4 Notes On Usage page 15

Note that the temperature may become
high when this product is used
continuously or when this product is
Do
being charged. Also, be careful not to
touch this product continuously and
unintentionally by putting it in a clothing
pocket or falling asleep.
The temperature of the product or
designated charging equipment (sold
separately) may become high during
continuous use or charging, such as when
using apps, making calls, communicating
data, or watching videos. Continuous direct
contact with hot areas may cause skin
redness, itching, rash, or low-temperature
burns depending on your constitution or
physical condition, so please be careful
when placing this product in a clothing
pocket or when sleeping.
■ Main unit
Do not put the product in a fire or
attempt to heat it.
May cause fire, burns or injuries, etc.
Don't
Do not puncture with a sharp object
(nail, etc.), strike with a hard object
(hammer, etc.), stomp on, or apply
Don't
excessive force on the product.
May cause fire, burns or injuries, etc.
If the substance inside the product gets
into your eyes or mouth, etc., rinse with
clean water and receive medical care
Do
from a doctor immediately.
The substance inside the product may
cause loss of sight or poor health, etc.
Danger
Notes on Usage
13