The 1.5.0 version of SIMUnlocker is available as a free download on our website. This program is an intellectual property of iToolab Studio. Our built-in antivirus checked this download and rated it as virus free.
From the developer:
Quickly unlock carrier locked iPhone and use any SIM card from any carrier worldwide on it. Once an iPhones carrier lock has been removed you can take it anywhere in the world and use local SIM cards on it. This helps you in using any country or regions network and avoid roaming charges.
Quick unlock carrier locked iPhone without Chip.
Solve common SIM Card locked issues such as "SIM Card Not Valid", SIM Not Supported, SIM locked.
You may want to check out more software, such as iToolab SIMUnlocker, which might be related to SIMUnlocker.