Lenovo Mobile Communication Technology Ltd. K53B3 用户手册

Installing the Nano-SIM & microSD cards

A Nano-SIM card provided by your carrier is required in order to use
cellular services

①

. A microSD card is required to store data.

Install the

Nano-SIM cards and the microSD card

as shown

②

① Only Nano-SIM cards work with your smartphone.
② Always turn off your smartphone first before you insert or remove a

Nano-SIM card. Insert or remove a Nano-SIM card with your
smartphone on may damage your Nano-SIM card or smartphone
permanently.

③ Both of the card slots support 4G/3G/2G data services, but you can

enable only one Nano-SIM card for data connection at a time. If you
want to change the Nano-SIM card used for data connection, go to
Settings > SIM management.

Step 1.

Step 2.

Step 3.

Insert the eject tool that comes with your smartphone into
the hole in the card tray.
Pull out the card tray and do one of the following:

Position a Nano-SIM card in Slot 1 and a microSD card
in Slot 2;
Position a Nano-SIM card in Slot 1 and another
Nano-SIM card in Slot 2

③

Carefully insert the tray with the installed cards back into the
slot.

SIM

micr

oSD

Slot1

Slot2

SIM

micr

oSD