Warning: Do not enter any wrong unlock unlock codes on your LG K428SG mobile phones. If you enter over a certain amount of wrong unlock codes on your mobile phone, your phone may get hard locked and sometimes become unusable.1. Switch ON your LG K428SG with a
Not ACCEPTED SIM Card.
2. If your LG K428SG asks for a PIN code, then enter your SIM card PIN and press OK.
3. LG K428SG will ask to enter an "unlock code".
4. Enter Unlock Code we send to you.
5. Your LG K428SG is now unlocked.
*NOT ACCEPTED : We mean, to use a Sim card from a network other than the network your LG K428SG is locked to.
Each LG K428SG mobile phone has an unique unlock code. You can buy the unique unlock code for your LG K428SG mobile phone at www.mobileunlocksolutions.com.