The following was summarized from Microsoft Knowledge Base Article 165908.
Check the . An Asian RH-105 has different hardware than a Latin American RH-105. Use the file matching your product code written under the battery (e.g., 0539648 ).
The Nokia 1208 has no real "unlock" via flash file—unlocking is done via a DCT4/BB5 calculator using the IMEI. Nokia 1208 Rh 105 Flash File
Before we discuss software, let’s look at the hardware: Check the
Once you've downloaded the flash file, you'll need to use a flashing tool to install it on your Nokia 1208 RH 105. Here are the general steps: Nokia 1208 Rh 105 Flash File
A standard firmware deployment for the Nokia 1208 RH-105 platform is split into three specific architectural files: