Samsung Galaxy Z Fold4 Notes On Usage page 24

If you have electronic medical
equipment such as an implanted
cardiac pacemaker or an implanted
Do
cardioverter-defibrillator equipped,
consult a doctor about the use of the
wireless charger (sold separately).
The product's signals may affect the
performance of electronic medical
equipment.
When unplugging and plugging in the
specified charging equipment (sold
separately) from and into the product,
Do
do not forcibly pull on the cord, etc.,
and straightly unplug and plug into the
connecting terminals.
If not properly unplugged or plugged in,
this may cause fire, burns, injuries, electric
shocks, etc.
Immediately discontinue use if the
charging jack is bent or deformed.
Do not try to straighten and re-use a
Do
deformed charging jack.
The short of the charging jack may result in
fire, burns, injuries, electric shocks, etc.
Leave the power plug unplugged from
the outlet when not using the specified
charging equipment (sold separately).
Unplug
If the power plug is left plugged in, this may
cause fire, burns, injuries, electric shocks,
etc.
Immediately unplug the specified
charging equipment (sold separately)
from the outlet if water or other liquids
Unplug
(drinking water, sweat, seawater,
pet urine, etc.) get into the specified
charging equipment.
Adhesion of such fragments may cause
fire, burns or electric shocks, etc.
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Notes on Usage