Ck11 smart bracelet wont turn on after update

I was in the same situation like you.

If you can still see "DFU Targ" when you search with bluetooth, there is some hope, you need an app called "nRF Tool box" and the firmware to get back the CK11 to life.

I flashed an old firmware version found on 4pda and now it continuously restart itself showing me Hello_B on the screen. So the problem here is to find an updated version of the firmware.

I think there is also an hardware solution to put the CK11 in DFU mode, like showed for another bracelet here:

https://forum.xda-developers.com/showpos...

My problem actually is i'm not able to open the case without damage it too much...

I was in the same situation like you.

If you can still see "DFU Targ" when you search with bluetooth, there is some hope, you need an app called "nRF Tool box" and the firmware to get back the CK11 to life.

I flashed an old firmware version found on 4pda and now it continuously restart itself showing me Hello_B on the screen. So the problem here is to find an updated version of the firmware.

I think there is also an hardware solution to put the CK11 in DFU mode, like showed for another bracelet here:

https://forum.xda-developers.com/showpos...

My problem actually is i'm not able to open the case without damage it too much...

"Asked for firmware upated started it.stopped midway during update (around 30% and now wont turn on at all. Please help."

I solved it by holding the button for over 5 sec, it will start up. Connect with your phone, you're done.

Don't know what this update brings, it is not good your armbracelet won't start after update!

Greetz, FredNL