Flashing will wipe all personal data , so back up your files first if the phone is still functional.
If you follow this guide exactly, your Nokia C5 will be back to working condition within 15 minutes. For more advanced repair tips (e-flashing via JAF box, or hardware fixes), stay tuned for our next article. nokia c5 rm745 flash file work
A widely available version, though some users reported issues with operator settings/internet connectivity. Nokia C5 RM745 Flash File: A Comprehensive Guide