Question about LG Vu CU920 Cellular Phone

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My LG VU is not reading my sim card but when i put Sim card in another phone is works

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  • Anonymous Jan 24, 2009

    i have the same problem



  • kelly_ann_k Feb 10, 2009

    I have the same problem as well, the phone functions but does not recognise the sim card. It is an at&t sim card so it should work but...

  • bigspeaks Feb 16, 2009

    I have the same problem. Can any one help? I put in the sim card that work works in other phones and it will not work in my LG VU.

  • Anonymous Feb 23, 2009

    everytime i unlock my vu, it says that i need to insert my sim. but when i put my sim in other phones it seems to work just fine. What's the deal?

  • wizard7969 Mar 13, 2009

    My LG VU was working fine until a few days ago. After unlocking the phone the display "insert sim card". I removed and reinserted the card several time, but could not clear the display. Cleaning the contacts with a clean eraser did not resolve the issue. The phone is not even 3 months old, so my next action will be to pay a visit to an AT&T store tomorrow.

  • Michael Stone
    Michael Stone Mar 16, 2009

    When I go to check how much storage I have on my sim, it says sim not ready. I also can't check my mobile email, send pics, or get online.

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The sim card goes in the other way. The cut should be on the bottom left facing up. Try it and see if it works.

Posted on Mar 18, 2009

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With the LG VU cu920 there is a problem with the sim card interface board not making a good connection with the main board. Here is the link on how to open the cu920. http://www.lg-vu.com/index.php?topic=11748.0 On picture #7 you will see the sim card interface board to the left of the camera lense. Cut a piece of thick paper (business card) and fold it once. Place it on the left side of the board. Do not place it on the silver metal where the sim card goes. Put the cover back but try not to move the piece of paper as you do. This worked for me.

Posted on Apr 08, 2010

  • lgvufix Nov 10, 2011

    I tried this, but it still isn't working. Do you have any other suggestions? Thx

  • shyamielyn
    shyamielyn Apr 20, 2014

    ok seriously? if you did this, it would void any type of warranty you might possibly have. don't do this. take it to a store where they repair cell phones, and they'll fix it $20, and it'll still be under warranty because you had a professional do it.

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The LG VU is notorious for having a "fried SIM reader", as the girl at my local AT&T store told me. This happens because the back of the phone gets too hot and it literally "fries". after being on the charger for less than 10 minutes, the wiring/CPU pack in the back of the phone gets too hot to touch, and if it wasn't metal, the place where the SIM card goes would probably eventually melt together if it didn't die first. This is what's happening. Typically I'd say it was an id10t error, but this time, it's LG's fault, they just **** ***.....

Posted on Jun 12, 2012

  • Garth Wagstaffe Aug 30, 2013

    silly phone made good in style but faulty in abillty

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My lg cu920 they can phone locked i forgot my pin number, can u help me, is not working my phone i forgot my pin number...plz....

Posted on Jan 26, 2009

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Posted on Jan 02, 2017

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1 Answer

I have an unlocked lg vu and a boost mobile sim card


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LG Vu Sim Card problem


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!

Dec 18, 2009 | LG Vu CU920 Cellular Phone

1 Answer

I dropped it and now my lg vu wont read my at&t smartchip. plz help.


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.

Sep 30, 2009 | LG Vu CU920 Cellular Phone

1 Answer

My LG Vu won't read my smartchip/sim card


There are several possibilities here. Has the sim card been activated for another provider? Has it been activated for your pnone's provider? Have you installed it correctly? Has it been damaged or scratched in any way, especially the gold contacts? Does it work in another phone from the same provider? Is your phone locked to a provider that is not the same as your sim? If the answer to all these questions is no, and you bought your phone and sim card from the same provider, take it back to them for an exchange.

Aug 11, 2009 | LG Vu CU920 Cellular Phone

1 Answer

LG VU won't turn on with SIM card after getting wet.


Go to your cell phone store and have them try another SIM card.

ATT replaced my SIM for free.

Aug 08, 2009 | LG Vu CU920 Cellular Phone

1 Answer

My LG Vu does not read my sim card


I had the same problem with mine. I took it to an at&t store and they put a new sim card in it and it still didnt work. I ended up having to get a new phone sense for some reason at&t said they didnt know what was wrong with it.

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3 Answers

Sim Card Problem In LG Vu


This happened to me too. A temporary fix is turn off your phone and put it in front of a really cold air conditioner for about ten minutes. Then turn it on but make sure you keep it in front of the ac to keep it working. What happened is your sim card reader has a thermal problem so you will need to take it in unless you want to spend all your time in front of the ac (which will get expensive...)

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1 Answer

I need to relock my unlocked lg vu


i just got mine and noticed the sim card can go in upside down. the same thing happened when i put mine in. try putting the sim card in different ways

Mar 18, 2009 | LG Vu CU920 Cellular Phone

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