Warning: Do not enter any wrong unlock unlock codes on your Philips ISIS 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 Philips ISIS with a
NOT ACCEPTED SIM Card.
2 - Philips ISIS will then display "Enter NCK".
3 - Enter the Unlock Code.
NOT ACCEPTED: We mean, to use a sim card from a network other than the network your Philips ISIS is locked to.
Each Philips ISIS mobile phone has an unique unlock code. You can buy the unique unlock code for your Philips ISIS mobile phone at www.mobileunlocksolutions.com.