Search term: "Nokia 6300 dead boot fix v7.20 by Zulea" – This version is known to revive phones that have been bricked for years.
Charge the phone to 100%. Play an MP3 for 1 hour. A standard file will drop to 75%. A better file will drop to only 85-88%. nokia 6300 rm 217 flash file better
A standard flash file is just the raw firmware. A flash file includes: Search term: "Nokia 6300 dead boot fix v7