These following steps are instructions to enter unlock codes on Cingular AT&T LG CU575 TRAX

1. Insert non-Cingular SIM card.
2. Power on the handset. Phone will display "Invalid SmartChip"
3. Now enter *#865625# then select option 1 and then again select 1 and enter your code.

Looking for Free LG Unlock Codes? Getting an unlock code for your LG mobile phone may be easier than you think. Many websites want you to pay for high priced unlock codes or instructions. The truth is most phone carriers such as T-Mobile and AT&T have no problem providing you with a free unlock code for your LG phone. All they require is your phone’s IMEI number. Checking a phone’s IMEI number was covered in my previous phone tutorial, but we will also cover it here.

How To Get A Free LG Unlock Code

1. Power on your LG phone and type *#06#
2. The first 15 digits displayed is your phone’s IMEI number.
3. Call your phone carrier’s support number.
4. Ask for an subsidy unlock code for your LG phone.
5. They will then ask for your IMEI number in exchange, and thats it!

Now you should have yourself a completely free LG unlock code. So, why should we pay a high price for an unlock code or even instructions if we can get it for free? You can find the instructions here. If none of the steps above worked, then you may have to look into different types of SIM unlocking software.

Note: I'm not guaranty any instructions provided in this guide to work for all models and i should remind you, entering incorrect unlocking codes 3 times or more could get your SIM card locked. If you are unsure about it, you should ask the professional services to do it for you. But still, for a free stuff it is worth to try isn't it?

If you want to unlock your LG phone to use it on another network, consider unlocking by entering a code. Code unlocking is the easiest way to remove the SIM lock of your handset. Just enter the code with the instructions below and it's unlocked. Try these guide to get you free LG unlock code.




How to Enter Unlock Codes on LG phones:


For the following models you must insert the original SIM and then:
  • LG C3100 press 2945#*3101#
  • LG C3380 press 2945#*7101#
  • LG F2300 press 2945#*7101#
  • LG KE260 press 2945#*2601#
  • LG KE970 press 2945#*9701#
  • LG KG120 press 2945#*1201#
  • LG KG220 press 2945#*1201#
  • LG KG240 press 2945#*3311#
  • LG KG280 press 2945#*7101#
  • LG KG290 press 2945#*7101#
  • LG KG800 press 2945#*7101#
  • LG KU250 press 2945#*250#
  • LG KU380 press 2945#*380#
Next, a secret menu will appear, go to settings-security-sim lock, enter Network Code Key (NCK) and press OK.

For the following models you must insert a not-allowed SIM and then:
  • LG KU311 press 815118#*#
  • LG KU800 press 82652#*#
  • LG L600v press 815118#*#
  • LG U8150 press 277634#*#
  • LG U8210 press 277634#*#
  • LG U8500 press 277634#*#
Enter Network Code Key (NCK) and press OK.