Warning: Do not enter any wrong unlock unlock codes on your Sitronics SM-5220 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 Sitronics SM-5220 with a
Not ACCEPTED SIM Card.
2. If your Sitronics SM-5220 asks for a PIN code, then enter your SIM card PIN and press OK.
3. Sitronics SM-5220 will ask to enter an "unlock code".
4. Enter Unlock Code we send to you.
5. Your Sitronics SM-5220 is now unlocked.
*NOT ACCEPTED : We mean, to use a Sim card from a network other than the network your Sitronics SM-5220 is locked to.
Each Sitronics SM-5220 mobile phone has an unique unlock code. You can buy the unique unlock code for your Sitronics SM-5220 mobile phone at www.mobileunlocksolutions.com.