Question about AT&T LG CU720 Cell Phone - Silver

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LG Shine doesn't reconize SIM card

When I power my phone off then back on it will say insert SIMcard...but the sim card is already in the phone. At first, icould turn off then on a couple of times and it would finlly see it. Now it doesn't even come on...just insert simcard. My sim card works in other phones, so i don't think its the card causing the problem. Any suggestions?

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  • sidpukesalot May 04, 2009

    i have the same problem ... did you ever find a solution

  • rixh14_cleve
    rixh14_cleve Aug 12, 2012

    i have the same problem too. please help.

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Yeah you probably need a new chip due to the 3g network it might work on the other phones because they are older

Posted on Jan 08, 2009

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How can you jailbreak a lg g800?


ow to Enter Unlock Codes on LG KB770: Insert an original simcard and turn phone on Enter sim PIN if required Enter 2945*#770# From the menu that pops up select "SIM unlock" Enter unlock code you received and press OK The phone will then reboot and the unlock is complete How to enter Unlock Codes to LG GB250 & GB220 Power on your phone without SIM card Enter 2945#*505# From the menu that pops up select "SIM unlock" Enter unlock code and press OK The phone will then reboot and the unlock is complete How to Enter Unlock Codes on LG GT505: Power on your phone without SIM card Enter 2945#*505# From the menu that pops up select "SIM unlock" Enter unlock code and press OK The phone will then reboot and the unlock is complete How to Enter Unlock Codes on LG KP100: 1) Insert a not allowed SIM card 2) Press the unlock button 3) Enter the code OR 1. Insert allowed SIM. 2. Booting (Request PIN Code, PIN Code enable) 3. In Idle Screen, Input the hidden number (2945#*20001#) 4. Input the number (above), go back to the idle screen 5. Menu-4.Settings, 7.Security-6.SIMLock Code:-1.Network Unlock Code:-1.Deactivate: 6. Select "1.Deactivate:" Menu, Display pop up " SIM Lock Code:". 7. Input right Unlock code, Display pop up "Deactivate". 8. Reboot, and unlock simlock code How to Enter Unlock Codes on LG KF390 and KF390q: 1) Insert a SIM Card from the network the mobile is locked to and turn it on 2) Insert the following sequence *#865625#; 3) Select 'Unlock USIM' 4) Select 'Network Lock' 5) Insert the unlock code 6) Reinsert the unlock code 7) Select OK. Done! How to Enter Unlock Codes on LG Prada (e.g KE850, etc): 1. Switch the telephone on with Original SIM card inside. 2. Enter SIM pin if required. 3. Enter 2945#*8501# and press the call button (middle button bottom of the screen). 4. SIM unlock mode will appear on screen. 5. Enter unlock code 6. Select Reboot. 7. Switch phone off, and then turn back on again. Phone is now unlocked How to Enter Unlock Codes on LG KE990 / KU990 Viewty: 1. Insert original sim card and turn phone on. 2. Press telephone icon at bottom of screen to bring up the phone keypad Enter 2945#*990# 3. A menu will pop up, select sim unlock: 4. Another menu will appear, select Network lock. Enter your unlock code and press ok 5. The phone will then reboot and the unlock is complete. How to Enter Unlock Codes on LG KG245 (Vodafone Australia): 1. Insert a Vodafone Australia working SIM card. 2. Ensure the phone is charged and then switch the phone on. 3. Optional Step: If the SIM card has a PIN, enter your PIN number 4. Wait for the phone to power up then enter 2945#*7101# 5. Select Menu , then go to Settings > Security > SIM Lock > Network 6. Select Deactivate and enter the 8-digit unlocking code provide for your handset. 7. The handset will be unlocked automatically and will display "Done". This will be confirmed if you can make and receive calls with the Non-Vodafone Australia SIM card. (You will need reception and phone credit with the different network provider) How to Enter Unlock Codes on LG KG800 or TG800 Chocolate: 1. With the phone in standby, enter 2945#*7101#. This will activate the extra menu. 2. Go to: Settings>Security>SimLock>Network 3. Select deactivate. Enter the unlock code How to Enter Unlock Codes on LG C2000: 1. Insert non-Cingular SIM card 2. Power on the handset - phone will display "phone restricted" 3. Select "Cancel" - phone will display "phone restriction code" 4. Enter the SIM Unlock code 5. Select "OK" - the handset is now successfully unlocked How to Enter Unlock Codes on LG U8150: 1. Switch ON your phone with a not allowed SIM card. 2. Compose: 277634#*#. 3. Go to menu "SIM Lock". 4. Enter the unlock code How to Enter Unlock Codes on LG INCITE CT810 Power on phone with original SIM card Type 2945#*810# In the menu that appears select Sim unlock Enter supplied unlock code Your phone is unlocked How to Enter Unlock Codes on LG F2250 Power on phone with Orange SIM card inserted While in the Start menu type 2945#*3311# Return to the startup screen Press Menu key Select Settings > Security

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Insert sim card lg ke 970 shine


This can really be only one of two problems. Either the phone SIM slot has been damaged or the SIM card has failed and needs replacement. It is obviously easier to try a fresh new SIM card. You need to call or go to your cell phone carrier's store and request a replacement SIM card. If the same message comes up with a new SIM, your phone needs servicing or replacement.

Sep 02, 2011 | LG Shine KE970 Cellular Phone

1 Answer

I have an lg shine from AT&T and yesterday it would not accept my sim card from AT&T. how do i fix it or is it fixable, i have seen several ppl complain about this very problem my sim card works in...


If your phone displays the 'Insert correct simcard' then your phone is currently locked to particular network. You need to unlock to use it with other network.
There can be many ways to Unlock your phone. As far as i know unlocking by codes is the simple and safe way. I will suggest the website Unlock-zone.com which is doing good service and they were recommended highly in the cell phone forums.
I used them to unlock my cell phone. contacted them and within 30 mins i had my unlock code and my phone was unlocked.
Hope this helps.

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1 Answer

Sim card reader


please insert the sim properly else the sim would have been damaged

Nov 11, 2009 | LG Shine CU720 Cellular Phone

2 Answers

I turn on my LG Shine cell phone and no matter


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.

Oct 04, 2009 | LG Shine KE970 Cellular Phone

2 Answers

Need to Unlock LG SHINE CU720 from ATT


fastunlocking.blogspot.com try this service, very fast and trust.

Mar 12, 2009 | LG C2000 Cellular Phone

2 Answers

How to unlock lg shine , so that i can use vodafone simcard


first you need a Serial KG800 cable, the original cable won't work.
then visit

http://www.unlocklgonline.com/index.php

and choose your model.
cheers
chris

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4 Answers

"Insert SIM card."


its the contact of the simcard to the leads. try putting a thin piece of paper over the sim so that there would be pressure on the sim. as always, think of the contact.

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