Lenovo S860 Smartphone - Manual (Page 4)

Step 1. Insert the SIM eject tool into the hole on the Micro SIM card
tray.
Step 2. Pull out the Micro SIM card tray and place the Micro SIM cards
in the tray.
Step 3. Carefully replace the tray.
You need to insert the Micro SIM card provided by your carrier to use
cellular services. Insert the Micro SIM card as shown.
Only Micro SIM cards work with your phone.
Do not insert or remove the Micro SIM cards while your phone is turned on.
Doing so may permanently damage your Micro SIM cards or phone.
Installing the Micro SIM cards
GSM
GSM