HOWTO Retrieve Nokia N75 Security Code

Okay, the Nokia N75 has a serious bug. When you change the default security code from 12345 to something else, it allows you to choose a security code with more than 5 digits. But when you’re required to enter the code, it accepts only 5. This bug and the time gap between when I changed the code to when I wanted to use it meant that I forgot what my code was.

I didn’t want to flash the phone, so I figured out a simpler way of recovering the code off the phone. This may or may not work with other phones and may or may not hose it. Here goes (windoze based) –

• Install Nemesis Service Suite (NSS).
• Connect the phone through a USB cable, choose pc-suite mode on the phone.
• In NSS, go to the Phone Info section and the Permanent Memory tab.
• Read the permanent memory into a file.
• Open this file in a text-editor, it is organised in numbered sections. Locate section [308] and the line starting with 5= within this section.
• The 5 ASCII values (in hexadecimal) following 5= should be the security code. For instance, if the code was 12345, the line would be 5=3132333435 …

For older Nokia phones, just use this master security code generator.

Permalink | Trackback | Hacks

1 Comment