Preparing Your Mobile Phone - niu Tek 4D2 User Manual

PREPARING YOUR MOBILE PHONE

Get started setting up your mobile phone for its first use.
Install the SIM card and battery
When you subscribe to a cellular service, you will receive a
Subscriber Identity Module (SIM) card, with subscription
details, such as your personal identification number (PIN) and
optional services.
To install the SIM card and battery,
1. Remove the battery cover.