Double sim card

1. Power down the Nokia cell phone before inserting the SIM card. If the phone is on when you insert the SIM card, it may not detect the newly placed device.
2. Insert a SIM card from your specific wireless provider. If you are attempting to insert the SIM card of a different company, your Nokia phone may not properly detect or use the equipment.
3. Slide the SIM card completely into the SIM card port on your Nokia cell phone. If the card is not pushed in all the way, your phone will not detect the information.

rijamunir, make sure if sim connector is not damaged, and try hard reset 3+*+green button+poer on button press and hold until show insert sim card. then insert sim card , the problem will be solved with hard reset described aboove.

ok read and do it carefully
you can remove this icon by followng steps
Press Menue Button
Open Messeging
Now Press Options
choose SIM Messages
Mark All Messeges and copy to INBOX
Mark all again and Delete all messages
Press Back button
Little envelope flashing will no more
Thanks

nokia 3110c no sim card inserted orange romania imei 356418023318565 ,i want to insert sim but it says phone restricted insert unrestriction code.help me how to resolve it??

Hi

This is happening because when the Sim card is not inserted you cannot access the menu of the phone some nokia phones(including yours) are built that way.

Some nokia phones do not need a sim card for you to access the phone menu (e.g 5130,5230), while you can only view the demo of some nokia phones (e.g 1208, 1600) without a sim card

I've dealt with this issue ever since I bought this phone - and would rather throw it across the room and watch it burst into 1,000 pieces than have to see the error pop up again. All I did was cut out about 1-inch by1/4" inch strip from a postcard - or any heavy weight paper. In other words, not cardboard, but not copy paper. More like the weight of a vhs cover box, cereal box, etc. I inserted one end of the strip above the sim card and below the phone shell (over the part of the sim card that's not showing); and folded the rest of the paper strip (might have to tear some off) to be double ply above the part of the sim card that is showing. Put on the cover; you should have to press firmly to get it to fit on and smash the double-ply strip down. Make sure the double ply is only over the sim card, not any over the battery. This worked for me!

there might be problem with the sim card holder. try to insert some piece of paper folded atop the sim card and close the sim holder

just insert another sim card and check whether that sim card is working. also put your sim card in to another phone and check whether it is working.

insert sim card

May be its detecting your sim card properly. Check your sim card in another handset. Verify if its the propbelm with sim card not your handset.