However, comparing Unfortunately, only a small part of Nokia Lumia users can enjoy this lucky. This part of the lucky users are now available to XDA for more detailed, and to Lumia equipment brush Interop, Unlocked (interoperability unlock) ROM. Should be noted that, now brush Interop, Unlocked ROM, may be dangerous, but also easily lead to phone a brick (not covered under warranty), so please act with caution.
How do I know their own equipment is native with no lock Bootloader? Very simple, first turn off the phone, then press and hold the volume up and power key until the phone vibration (about half a second). Connect your phone to your computer, if the mobile phone into disk mode (USB Mass Storage Device), then congratulate you on your phone with no lock the Bootloader. Should be noted that, when Windows will prompt you if you want to format the disk, select "NO", otherwise, the consequences you know. Connect your phone to your computer, if the device detects Nokia DLOAD, unfortunately, your phone Bootloader is locked. In addition, if the device you are using a newer version, or had used the Nokia Care Suite upgrade equipment, then we can only say I regret.