If that fails, download a verified PAC file from LR’s server or GSM-Forum, and flash via ResearchDownload.
: You must install the correct USB drivers on a Windows PC (Windows 7 or above) to ensure the computer recognizes the phone. Preparation : nokia c31 firmware download top
Visit the Nokia C31 dedicated section. Look for threads with “Stock ROM (Untouched)” and high reply counts. If that fails, download a verified PAC file