My lg vu says insert smartchip and it's in

Cut a small piece of cardboard or credit card plastic similar in shape to -- but just a bit smaller than -- the smart chip. Place the piece on top of the smart chip. Simultaneously slide both the smart chip and the piece of cardboard/plastic into the smart chip slot. Make certain you are inserting the smart chip with the proper end inserted first and with the contacts uncovered by the extra piece (On the LG Vu, the smart chip contacts will face down and the missing corner will be showing on the outside of the slot when the card is inserted properly.). If that doesn't do the trick -- see your cell phone provider and/or get a new phone.

SIM has probably gone bad ..att will replace it for free

Try getting your sim card changed or the sim card reader in your phone fixed

Try cleaning the contacts on the sim card. if that doesn't work go into the phone store and ask for a replacement sim.

DID U PUT IT IN BACKWARDS

You are placing the smart chip on top of the smart chip holder. It's a little metal square where the smart chip should go. Lift up the metal square and place the smart chip underneath. I had to go to my local AT&T dealer to figure this out.

the smartchip is either not in correclty or maybe the phone doesnt read the smartchip

you have to put the smart chip in the other way. i had the same problem but you have to put the side that looks like it was cut facing out and the flat side in.... hope that helps

It did that for me too. But when I pushed it down gently and inserted it in, it worked for me.

attempt to take the SIM card out and gently wipe it off (pay especial detail to the copper connectors on the under-side.) after that, give a gentle blow to the recieving area for the sim on the phone and place the sim back in the phone, power up, and hopefully this problem will be solved. this issue occurs often to myself and this seems to be a very simple solution.