Samsung YP-S3JARY-XAA - Manual (Page 17)

the basics _ 17
USING THE TOUCH BUTTON
Tap on the touch button with your fi ngertip.
To avoid damage to the touch button, do not use any object other than your fi ngers
to operate it.
Do not tap on the touch button if your fi ngers are not clean.
Do not tap on the touch button with gloves on.
The touch button may not function if you use a fi ngernail or other instruments such
as a ballpoint pen. ƒ
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NOTE