Using the wrong flash file (e.g., from a different Nokia S40 model or variant) will hard-brick the device.
Flashing will erase all user data . Back up your files and remove microSD cards before proceeding. How to Flash Nokia C2-01 (Step-by-Step) nokia c201 flash file
Fixes "restart loops" or corruption caused by interrupted firmware updates. Using the wrong flash file (e
Flash File (Firmware) : Ensure you have the firmware folder (named like RM-721 ) containing files such as .mcusw , .ppm , and .image . Using the wrong flash file (e.g.