Avoid EXE-based "self-flashing" tools from unknown YouTube links. They often contain ransomware. Look for standalone .fpsx (Flash Package) files or separate .mcusw , .ppm , .cnt files.
The file is the "Content" partition. This holds the pre-installed wallpapers, ringtones, themes, demo videos, and operator logos. It is the least critical for functionality but essential for a "full factory reset" experience. nokia c2-01 rm-721 flash file mcu ppm cnt
The personality. This file carried the default images, ringtones, and gallery items. and gallery items.