Flashing the Nokia C5 (RM-745) is a technical process used to fix software issues, remove lock codes, or update the firmware. Because this is an older Symbian-based device, the most reliable way to make the flash file "work" is by using legacy service tools. Requirements for Flashing

Start Flashing: Go to the Flashing tab and select Firmware Update.

You can download the Nokia C5 RM745 flash file from the following links:

If the phone is "dead" (won't turn on), use the SW Reset or Refurbish option while in "Dead Mode". 2. Using Infinity BEST Dongle

A widely available version, though some users reported issues with operator settings/internet connectivity.