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Firmware Update: Sense

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‎02-15-2025 04:02 - last edited on ‎02-15-2025 14:00 by Fitbit Moderator

‎02-15-2025 04:02 - last edited on ‎02-15-2025 14:00 by Fitbit Moderator

My needed firmware update (2/14/25) has locked up my watch screen, but when I go to start the update, my Fitbit app cant find the watch. 

I can find the firmware update easily. I've made sure my watch is close by and both devices are charged.  Then, I restarted both my devices, and I made sure I had the latest version of the Fitbit app. 

I go to do the update, and the two devices won't connect. I'm not sure what to do next. Thanks! 

Best Answer
7 REPLIES 7

‎02-15-2025 04:56

‎02-15-2025 04:56

I am having the same issue for about 5 days now, going through the same steps of forgetting device, repairing, waiting for update just to get a notification that it has failed and to try again. I try again and same thing, going in circles. Very annoying, my watch has been out of action now for 5 days. 

Best Answer

‎02-15-2025 08:57 - edited ‎02-15-2025 09:00

In response to Janeodoherty

‎02-15-2025 08:57 - edited ‎02-15-2025 09:00

Hi there @Kweathers and @Janeodoherty!

A warm welcome to the Fitbit Community!

Thank you for informing us about this situation and for all your efforts.

Which Fitbit device do you have? It sounds like you could be talking about the Sense (not Sense 2) due to the Firmware Update. Could you please confirm this information?

In the meantime I suggest you try to follow the tips from this article: Why can't I update my Fitbit device? Please check if you have the 4.36 Fitbit app version too and if your phone has one of the following operating systems:

  • Apple iOS 15 and higher
  • Android 10 or higher
Best Answer

‎02-15-2025 11:39

In response to FatimaFitbit

‎02-15-2025 11:39

Thank you! If it sounds like I have a Sense, then that may be what I have.
I'll try your suggestions. Thank you!
Best Answer

‎02-15-2025 13:58

In response to Kweathers

‎02-15-2025 13:58

Hi @Kweathers!

Thank you for your answer!

If you have the Fitbit Sense and the firmware update still cannot be installed, you can try to do a factory reset (please make sure you sync your device with the Fitbit app properly before so the data recorded remains in your account):  

  • Do not plug the Fitbit device into the charging cable.
  • Press and hold the button for about 8 seconds until the display turns off.
  • After the display turns off, you will feel a short vibration.
  • After that, please release the button and immediately press and hold the button again.
  • Wait until the Fitbit logo appears that will disappear:
  • Immediately release the button and then immediately press and hold it again until you feel a vibration.
  • Release the button after you feel the vibration.
  • This vibration indicates that you have started the factory reset.
Best Answer

‎02-17-2025 10:14

In response to FatimaFitbit

‎02-17-2025 10:14

NONE of this works. NONE. I had issues with my Fitbit back before Christmas and it was never resolved. Against my better judgement I bought a newer one. Now my wife is having issues with her Sense 2.  It will not sync. It was only causing an issue saying it needed a firmware update before I followed the advice on the forums. Now it is freaking worse. Now nothing. I get a message on the screen in a bazillion languages rotating for a download, but her phone can't find it and it will not sync.  And I have restarted it and deleted and reinstalled Fitbit a bunch of times already, so please don't say that suggestion freaking again.  I would like this fixed this time.  Google screwed up Fitbit.

Best Answer

‎02-17-2025 15:09

In response to FatimaFitbit

‎02-17-2025 15:09

So do I understand correctly that unless I am using at least Android 10 on my Samsung Galaxy S8 I am out of luck and my Sense is now useless?

My Galaxy S8 can not be updated to a higher version beyond Android 9.  I realize the phone is a bit older but it works flawlessly.  I never have any issues with it.

I apparently successfully updated the firmware and app to the latest versions.  At least that what the Sense and Fitbit app indicate.  But the Sense won't sync with the phone and keeps indicating that I need to download the update even though it shows 100% completed and it previously took me through the entire setup process twice.

Thank you for the help in advance though I feel at this point I will be out of luck.

Best Answer
0 Votes

‎02-20-2025 04:11

In response to FatimaFitbit

‎02-20-2025 04:11

hi fatima - i have an iphone and its at 18.3 and my fitbit is not syncing with my phone.  some days it shows the walking i do and other days it does not…  this is very frustrating.  ive deleted the app started my phone and nothing…  very disappointing and ill be switching from fitbit.  we were also told about this appeasement for $50 and to sign up with payoneer but its for business use only…  im done with fitbit 

Best Answer
0 Votes