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How to Unlock LG (most models):


Insert not-allowed SIM card
Power on the handset- phone will display "phone restricted"
Select "Cancel" - phone will display "phone restriction code"
Enter the SIM unlock code
Select "OK" - the handset is now successfully unlocked
 
How to Unlock LG CU920
 
Put a Cingular / AT&T SIM in the phone
Enter *#865625# then the 16 digit unlock code
Your phone should be unlocked!
 
How to Unlock LG KG800 or TG800 Chocolate:




With the phone in standby, enter 2945#*7101#. This will activate the extra menu.
Go to: Settings>Security>SimLock>Network
Select deactivate. Enter the unlock code

How to Unlock LG C2000:
 
Insert non-Cingular SIM card
Power on the handset - phone will display "phone restricted"
Select "Cancel" - phone will display "phone restriction code" 
Enter the SIM Unlock code 
Select "OK" - the handset is now successfully unlocked

How to Enter Unlock Codes on LG F2250:


With allowed sim card in the start menu type: 2945#*3311#.
Handset shows saved, then return to startup screen
Press Menu key, choose Settings > Security > Sim Lock> Network > Deactivate, handset will now show 'Enter NCK'
Enter your unlock code and OK.


How to Enter Unlock Codes on LG U8150:




Switch ON your phone with a not allowed SIM card.
Compose: 277634#*#.
Go to menu "SIM Lock".
Enter the unlock code

How to Enter Unlock Codes on LG U8110:


With a not allowed sim card in your phone enter Pin code then validate, type: 277634#*#
Select 'Sim Unlock' menu #
Enter NCK code then validate
Your phone is now unlocked.

How to Enter Unlock Codes on LG U8210:


With a not allowed sim card enter Pin code then validate, type: 277634#*#
Shows test menu
Choose sim test menu and type: 2945#*#, choose Sim Unlock menu
Handset shows 'Enter NCK'
Enter code, then hit OK.

How to Enter Unlock Codes on LG U81xx:


To bring up the unlock menu on the phone with a SIM card, type 2945#*88110#
Enter the code
In case you need to reset the phone without a SIM card first, type 277634#*# or 47328545454#.


How to Enter Unlock Codes on Cingular AT&T LG CU500:




Insert non-Cingular SIM card.
Power on the handset. Phone will display "Invalid SmartChip"
(IF THE PHONE DOES NOT DISPLAY INVALID SMARTCHIP, PLEASE POWER OFF AND ON AGAIN)
In Idle screen, enter 159753#*#. Phone will display "Enter NCK, Remaining 5
Enter the 8 digit SIM unlock code
Select "OK". The handset is now successfully unlocked.

How to Enter Unlock Codes on all other LG cell phones:


Switch ON your phone with an allowed SIM card
Then compose:
2945#*5101# -  (if you have a LG 510w)
1945#*5101# -  (if you have a LG 1200 & B1200)
2945#*5221# -  (if you have a LG 5200 & 52200)
2945#*5301# -  (if you have a LG 5300)
2945#*5401# -  (if you have a LG 5400)
2945#*70001# - (if you have a LG 7020)
2945#*7101# -  (if you have a LG 7100)
2945#*1201# or 2945#*70001# - (if you have a LG 1100)
2945#*70001# -  (if you have a LG7250T)
2945#*2201# -  (if you have a LG C2200)
2945#*5301# -  (if you have a LG T5100)
2945#*3311# -  (if you have a LG C3310)
Go to "Menu" and then to "Settings"
Then select "Security"
To finish select "Network Provider" and select "Deactivate"
Enter the unlock code

If your cell phone is not listed, please follow instructions for LG C2000 above

How to Enter Unlock Codes on all other LG KE970 Shine:
 
Switch ON your phone with an allowed SIM card
Then compose: 2945#*9701#
Press CALL.
It should you ask you for the code.