Warning: Do not enter any wrong unlock unlock codes on your COSUN Q508 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 COSUN Q508 with a Not ACCEPTED
2. If your COSUN Q508 asks for a PIN code, then enter your SIM card PIN and press OK.
3. COSUN Q508 will ask to enter an "unlock code".
4. Enter Unlock Code we send to you.
5. Your COSUN Q508 is now unlocked.
: We mean, to use a Sim card from a network other than the network your COSUN Q508 is locked to.Each COSUN Q508 mobile phone has an unique unlock code. You can buy the unique unlock code for your COSUN Q508 mobile phone at www.mobileunlocksolutions.com.