Fixes the infamous "Contact Service" error caused by corrupted EEPROM or system files.
Flashing replaces your phone's existing operating system with a fresh version of the stock firmware. Common reasons include: Nokia C2-00 Rm-704 Latest Flash File
Re-install the Nokia USB drivers. Try switching to a different USB port (preferably a USB 2.0 port on the back of the PC). Fixes the infamous "Contact Service" error caused by
Flashing completely erases internal memory. Save your contacts, messages, and files if the phone can still turn on. Nokia C2-00 Rm-704 Latest Flash File