Sense stuck on reboot loop

[harishgupta]

My Fitbit is not even a year old. It suddenly went into a boot loop.

I have followed all reset options provided by Fitbit, but no luck

What a horrible piece of machinery! Unbeleivable,

Moderator Edit: Clarified subject

[HENGNG]

The instruction is useless and still stuck in boot mode cycling

[Sigmeda]

These instructions actually worked. My fitbit got stuck in reboot loop, only showing the logo and then blanking the screen and restarting every few minutes. Support was unable to help, but I did the following based on Gummeh's message (look there for details)

1) unpaired bluetooth for Sense and Sense controls (I'm on Android). I didn't think this would help, but it did. All my attempts at factory resetting the watch had failed until I did this step and the next.

2) Followed factory reset steps 1-8. In step 5 the blue logo appeared only briefly, so be ready to release and then hold it one final time. 

At that point the fitbit gave a chime and went into setup mode. My phone still had the app installed, and it popped up asking to setup a new fitbit and replace the existing device. Now I just need to charge it so I can complete the setup, it says battery too low to setup wifi on the device. Thanks @Gummeh !

[Skabeis]

Hi and yes, it's a problem with the BT connection...

[Dgoub]

Glad it worked for you.

I also compeled step 1) and 2) several times. However, it did not bring any solution for my device

[BobD50]

Hi, How do you force the Sense Bluetooth to switch it off and on. Which is the normal way to reset any device. It is called a MASTER RESET in the Technical world. It forces the device to start from scratch.  Bootloops are the result of the device  being in a loop process. Repeating the same sequence,  over & over, and never moving from the problem locking up and causing the device to bootloop.

The Fix is to stop this continuous repetition, and jump out. By a reset which by pressing key on watch until such time, the device fully restarts from scratch,  then and only then will the device recover, to finally process all steps in the bootup sequence.  To the point that allows the Bluetooth Tx/Rx in the watch to connect with Bluetooth  Rx/Tx in the phone and handshake back & forth. To complete the Pairing process.

So the crucial bit is get the Sense Watch to Transmit the Bluetooth signals, for Fitbit app in the phone to link up. Whola, the two devices are paired, and able to proceed to achieve a reliable connection. Then you should then get the code, to accept on both devices.

So I am asking you all. What is the process to achieve a successful Bluetooth pairing. 

Thanks for  your assistance. 

Cheers Bob.

[SG2001]

This doesn't work. The device is dead. Fitbit sucks.

[LeaderSmall]

Thanks, I am going to give this a shot because nothing else has worked.