Frequent international travelers use it to unlock their domestic phone to use cheap local SIM cards abroad.
Remove the current SIM card. Insert a foreign (non-accepted) SIM card. The phone will prompt: "Enter Network Unlock Code." Type the code from NCKReader. Press Unlock. nckreader
Those who root phones, install custom ROMs, or debug radio firmware. NCKReader vs. Online Unlocking Services: Which is Better? Many users ask: "Why use NCKReader when I can just pay $5 for an online code?" Frequent international travelers use it to unlock their