Phone not working.. Asking for smartchip

try taking out the sim card and wiping it with a cloth then blowing on where the sim is placed. Hopefully this will work ;) please rate :)

if you are trying to use the phone with a sim card that you dont usually use with that phone it is most likely locked to another phone take it to your service provider and ask them to unlock it to use on your lg vu . If its your regular sim card then sim card reader is malfunctioning . you will need to have it fixed

It should not happen but...if it is happening then make sure that after inserting any other operator card is it asking for any code? If yes then? Insert Air tel Sim And disable the phone pin lock in security menu of phone...after disabling this u can insert any sim on that........

You are trying to use a SIM from another Network or Handset but your phone is LOCKED to your old network and/or to a specific SIM card and number: this is why it is asking you for the unlock code to remove the restriction. It you are no longer under contract or obligations (such as minimum total recharge amounts for apre-paid handsets), then you could try to request the unlock code from the original service provider of your handset.
As for asking to insert SIM card, make sure that the SIM is correctly and securely inserted in your handset SIM holder. Also check that the SIM is still functional by inserting it in another handset: SIM card can be permanently and physically disabled if you attempt to enter too many consecutive invalid codes (usually around 10).
Hope it helps and good luck!

I had mine in upside down and that caused it to say insert smartchip.....could be a back sim card. If you have another phone test out the sim card in that phone or have your service provider help check the sim card

Turn off the phone. Take the battery and Sim Card out. Make sure there is no dust or dirt of where the Sim Card goes. Blow air (from your mouth) of where the Sim Card goes. Sometimes rubbing a soft pencil eraser on the Sim Card contact points can help. Then place the Sim Card back in the phone. Make sure it is in the right position; copper contacts facing downward. Put the battery back in your phone. Turn it on, and see if the smartchip rejected goes away.

If not you may need to contact your Phone Provider’s Tech Support to troubleshoot and confirm that you may need a PUK reset code to register or you may need a new Sim Card, as they do fail from time to time.

There could be a fault with the contacts on the USIM reader of your handset

Turn off the phone. Take the battery and Sim Card out. Make sure there is no dust or dirt of where the Sim Card goes. Blow air (from your mouth) of where the Sim Card goes. Sometimes rubbing a soft pencil eraser on the Sim Card contact points can help. Then place the Sim Card back in the phone. Make sure it is in the right position; copper contacts facing downward. Put the battery back in your phone. Turn it on, and see if the smartchip rejected goes away.

If not you may need to contact your Phone Provider’s Tech Support to troubleshoot and confirm that you may need a PUK reset code to register or you may need a new Sim Card, as they do fail from time to time.

yers sir it a sim

Your phone is asking for a code because it is locked to only work with one phone company. If your new sim is from a different company, you can request the unlock code from your old company, they may or may not give it to you (tmobile usually does, ATT/Cingular usually doesn't). The other option is to use a unlocking service, you can find plenty on ebay. If you didn't change phone companies, your new sim card is most likely bad, have your phone company send you another one.