Insert the SIM card and battery - Nokia Asha 311 - helpdoc.net
If the phone displays an "Insert SIM" or "No SIM" error after installation, try these common fixes: Nokia Asha 311 Insert Sim
: Place your fingernail in the notch at the bottom of the phone and lift the cover off. Remove Battery : Lift the battery out of its compartment. Open SIM Holder : Locate the SIM card holder. Insert the SIM card and battery - Nokia Asha 311 - helpdoc
: Place the Mini-SIM card into the slot with the gold contact area facing down . Ensure the cut corner of the SIM matches the orientation shown in the slot's diagram. Nokia Asha 311 Insert Sim
: Replace the battery, then snap the back cover back into position. Troubleshooting "Insert SIM" Errors