The Nokia TA-1165 is a Feature OS device (often running a simpler operating system rather than Android). Because of this, the firmware structure is different from the complex partitions found in smartphones. The firmware is typically contained in a single file with a .mbn or .mpm extension, often referred to as the "MCU" file.
Use WinRAR or 7-Zip to extract the downloaded flash file into a folder on your desktop. Ensure the folder path has no spaces (e.g., C:\Nokia_TA1165_Firmware ). nokia ta 1165 flash file