Will not recognize my T-mobile SIMs card. I have tried two that work fine in other T-mobile phones but this new unlocked LG KP500 simply says "no SIMs card installed".

PUK stands for Personal Unblocking Key. This is a uniqueeight-digit code specific to your SIM card. This is required when the PINnumber to unlock your mobile phone is entered incorrectly 3 times. You are thengiven 10 attempts to enter your PUK code. If an incorrect PUK code is enteredafter the 10th attempt, you will block your SIM card permanently and willrequire a new SIM card from your mobile phone provider.
PUK codes can be obtained through the following ways -The PUK code is in your SIM card documentation Starter Pack.If you do not have this then -Please contact your phone service provider.
Your cell phone service provider can give you the PUK code once you give themyour account details and they have confirmed your identity.For details to obtain the PUK code for the SIM card, pleaseclick on this link and follow my instructions.
http://www.fixya.com/support/r5705889-puk_code

Hi did you tried to insert your sim when your mobile is in contract? if so you have to unlock your mobile in order to use other provider..try here http://www.mobileunlocksolutions.com/lg-kp500-/rs1wp9/ to get unlock code for your mobile and get it unlocked to use other provider's sim..

If your LG KP500 is Unlocked Mobile means You can use the 3 Sim card otherwise You cannot use...If it locked means You can get the Unlock code here
http://www.mobileunlocksolutions.com/lg-kp500-/rs1wp9/ and Unlock the Mobile from the Network Lock...

http://www.unlocking4u.com/lg-kp500-/rs6wp9/ this link will be able to unlock ur mobile LG kp500 model...i tried this it showed me the result very soon.

When you place a new or a existing SIM card from another phone provider into your mobile phone and it asks for a Security code then :-
This phone is locked to the original mobile phone provider. You need to contact this mobile provider to ask for the unlock code (security code) for this phone. You need to provide proof of ownership etc and the phone's unique IMEI number which is located inside the phone under the battery. They use this number to generate the unlock code for your phone.
They should provide you with instructions on how to enter this code into the phone.
Once you unlock the phone, then you can insert a new SIM card in this phone or sign up with another phone provider using this phone.
You could ring the phone provider and ask for the unlock security code because you are going overseas and wish to use your phone with a prepaid SIM card from another country. This maybe a free service.
The other way to get your phone unlock is to use a phone unlocking company on the Internet, they usually charge a couple of Dollars for their services. Use Google and search for "Security unlocking code” for unlocking phone companies in your area.

you can get your mobile lg kp500 mobile unlocked here
http://www.mobileunlocksolutions.com/lg-kp500-/rs1wp9/ at very low cost with secure & safe...it gives you best solution..

i think your sim is ant active try to activate it from the customer care center

it will need to be smaller then 8gb...... also micro SD......... NOT micro SDHD .....you also need to format it using the phone (check user guide for info on how to do this)
hope this works for you .....good luck

Throw it in the bath then turn it back on and it will say sim unlocked trust me it works!

You need to call the phone company that sold you the phone card to unlock the phone.

PUK means "personal unlocking key" .

The PUK code is asked if you enter a wrong pin 3 times.

You need to call the phone company that released the SIM card, they can retrieve the puk code from a database for free.

In your case you need to contact your SIM card phone provider technical support to unlock the SIM.


The PIN and PUK are related to the SIM card, not to the phone.

If you replace the SIM card with a different one, then the phone will not ask for the PUK anymore.