Lenovo S660 Smartphone - Manual (Page 4)

You need to insert the SIM card provided by your carrier to use
cellular services. Install your phone as shown.
DO NOT insert or remove the SIM cards while your phone is turned on.
Doing so may permanently damage your SIM cards or your phone.
SIM2 SIM1
SIM2 SIM1
b
a
SIM2 SIM1 SIM1
SIM2
SIM2 SIM1 SIM1
SIM2
SIM2 SIM1
SIM 2 SIM 1
Step 1. Open the back cover.
TIP 1: Use your finger or a plastic
opening tool to pry the back
cover.
TIP 2: Do not apply force when
opening the back cover to
avoid breakage.
TIP 3: Make sure to align the hooks
with the designated holes on
your phone. Be careful not to
bend the hooks on the back
cover.
Preparing your phone
Step 2. Insert the SIM cards and
the memory card.
TIP: Insert the SIM1 (USIM) card
into SIM1 slot and SIM2 card
into SIM2 slot.
Step 3. Install the battery.
Align the battery
connectors on the battery
with the pins in the
battery
compartment. Then push
the battery down into
place.
Step 4. Install the back cover.