How to Update a Fitbit Charge Fitness Band - Support.com TechSolutions
Product Manual
Fitbit Charge 2 firmware update adds workout pause feature and more
Fitbit Charge HR, Surge activity trackers can now detect workouts, better track your heart rate - CNET
Fitbit Charge 5 update is bricking the fitness tracker — what you need to know | Tom's Guide
Did I just brick my Fitbit? Followed instructions for the firmware update, had a full battery and kept it next to my phone. Firmware update failed and now my Fitbit is stuck
Fitbit Charge HR Review: For Its Price, The Best All-Around Fitness Band - The Tech Edvocate
Fitbit Charge HR review - Tech Advisor
Fitbit Charge stopped working after update - Fitbit Community
Charge HR stuck updating, update keeps failing. What can I do? : r/fitbit