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Insert a SIM card from an unapproved, alternative network provider.

Manually type the provided codes into the phone when prompted (or via a secret dialer code like #7465625*638*CODE# ) to permanently unlock it. Technical Context

The tool often requires the device's IMEI or serial number to process the unlock via official server-side algorithms .

In the mid-2000s, Samsung released a highly popular wave of feature phones and early smartphones powered by Agere chipsets. Devices like the Samsung X495, X497, C130, and D807 were staples of major carriers like AT&T and T-Mobile. However, these phones were heavily network-locked, preventing users from switching carriers or using local SIM cards while traveling.

Network locking was a standard practice for mobile carriers during the feature phone era. It tied handsets to specific networks and restricted consumer freedom. Among the various software tools created to bypass these restrictions, stands out as a highly specialized utility. It was designed specifically for Samsung handsets running on Agere chipsets .