Sim Unlock Pro

Sim Unlocker Pro
Easily sim unlock your smartphone / tablet so you can use any other network operator.
No need for unlock code on most devices: as simple as one button click, and you can change your carrier sim card!
Sim card Unlock is the only app that can instantly and successfully unlock new devices. Even with recent ICS or JB roms update.
Major functions:
★ Backup and Restore EFS data, keep it safe on your email or Drive account (free)
★ Get detailed information about your nv / lock state
★ Sim Unlock your phone

* Please note that due to different hardware, many LTE / 4G devices are not supported yet. On some SGS3, SGS4 and Note2, a recent rom update brings a new lock system that can not be unlocked yet. Do not leave bad feedback, we're working on it, but that's a complex process that requires time and access to locked devices! *
Sim Unlocker
Features:

✔ Gives detailed information about current locks status (locked, unlocked or "partially locked")
✔ Persists even after reset / flash / wipe / unroot
✔ Automatic and manual efs backup (should guarantee a safe use), restore it on demand
✔ Supports more Galaxy devices soon
✔ Supports devices previously unlocked with "voodoo unlock", "Sim Unlock" or "galaxy s unlock"
✔ Unsimlock / unbrand your phone
✔ Detects errors like lost imei / serial in nv_data caused by third party apps
✔ Supports other Galaxy family devices (S, S2, Tab, Note and their variants)

Sim Unlocker Pro
Easy to use:
• Be sure your rom isoted (tutorial links included for major devices) (you can unroot once unlocked)
• Click on "unlock" button
• Reboot
Sim Unlocker
Notes:
• If other carriers' sim cards are still refused after a successfulfull unlock, your phone may be "hardlocked" by your carrier.
• This app is just a simulation.