Galax Sim Unlock is the only app that can instantly and successfully unlock new Galaxy devices. Even with latest ICS or JB roms update, your GS2, GS3, GS4 or Note2 won’t unlock after reboot.
Easily unlock your Samsung Galaxy smartphone/tablet (S, S2, S3, some S4, Tab, Tab2, Note, Note2…) so you can use any other carrier.
Most devices do not require an unlock code: just press one button and you can change your operator’s SIM card!
Main functions:
- Sim Unlock Phone (In-App Payment)
- Backup and restore EFS data, keep it safe on your email or drive (free)
- Getting detailed information about the state of nv / blocking
Source: Trash Box

Charles Grill is a tech-savvy writer with over 3 years of experience in the field. He writes on a variety of technology-related topics and has a strong focus on the latest advancements in the industry. He is connected with several online news websites and is currently contributing to a technology-focused platform.