The "RM-675" part refers to the specific model number of the Nokia C7, and "RC Belle" likely indicates that it's related to the Belle refresh (or Belle FP2) update for the Symbian operating system that Nokia used at the time. "Euro3" might refer to the region or set of features intended for European users.
AnonD-31996, 27 Nov 2011->Download files from "http://www.mediafire.com/?px... more1- Download Phoenix Software and install it. 2- GSMArena.com Adventures in firmware: the Nokia C7: Delight 6.2 edition Nokia C7 RM-675 RC Belle Euro3.rar
: Connect your Nokia C7 to the PC via USB in Nokia Suite/Ovi Suite mode. The "RM-675" part refers to the specific model
As with any firmware update, there may be some common issues that arise during or after installation. Some common problems and troubleshooting steps include: Remove SIM and memory card (optional but recommended)