: While primarily for Nokia, versions of this tool historically supported other brands like Samsung, Siemens, and Panasonic. How to Use the Calculator

It uses an algorithm to calculate "pw" (password) codes based on the phone's unique , country, and original network provider. Compatibility:

How to Unlock Your Nokia Cell Phone: 3 Simple Methods - wikiHow

: Despite its name, the calculator also provided support for select models from Siemens, Samsung, Sony, and Panasonic. Key Features (v.3.20.03)

: Generates codes for Nokia, Samsung, Siemens, Sony, Panasonic, Alcatel, LG, and NEC.