Verykool RS75 User Manual

Page 40

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moving parts and prevent normal use;

8. Use only approved batteries and accessories. Use of any

unauthenticated batteries and accessories could damage your
phone and may be dangerous;

9. If there’s something wrong with your phone or its accessories,

do not attempt to dismantle the phone. Contact qualified
service personnel to repair your phone.

Terminology explanation

GSM

Global system of mobile

SMS

Short message service

SIM

Subscriber identify module card

Personal computer

PIN code is a 4-8 digit personal identification number, and
is used to prevent your SIM card from misuse. It is
provided by your service provider. If you enter 3 times
error PIN code continuously, the SIM card will be locked,
and then you must enter PUK code to unlock.