The already impressive Fitbit Charge 3 is getting even better with a new firmware update - PhoneArena
The Latest Fitbit OS Update Delivers Even More Health and Convenient Features to Smartwatches - Fitbit Blog
Fitbit Charge 3 receives an update with Charge 4 features - GSMArena.com news
Cannot update Firmware!!! - Fitbit Community
How to Update Fitbit Firmware (2020) - YouTube
How to Update Fitbit Firmware - YouTube
How to Update Fitbit Firmware Using Fitbit App - YouTube
Solved: Charge 4 firmware not updating - Fitbit Community
How to Fix Fitbit Firmware Update Failed Error
Solved: Versa is getting stuck on Firmware update - Fitbit Community
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