Yezz Z51 Manuel page 91

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.
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