You can get the Unlocking Instructions for Sidekick 2 at here Onlinegsmunlock.com/sidekick-2/rs7wp9/
and Unlock it from network lock......
Sidekick 2 Unlocking Instructions
Do not enter any wrong unlock
codes on your Sidekick 2 mobile phones. If you enter over a certain
amount of wrong unlock codes on your Sidekick 2 mobile phone, your phone
may get hard locked and sometimes become unusable.
1. Switch ON your Sidekick 2 with a Not ACCEPTED
2. If your Sidekick 2 asks for a PIN code, then enter your SIM card PIN and press OK.
3. Sidekick 2 will ask to enter an "unlock code".
4. Enter Unlock Code we send to you.
5. Your Sidekick 2 is now unlocked.