Boot loop after updating from 2v25 to 2v27

[JulianGro]

Hello,

I just updated the firmware on my Bangle.js 2 from 2v25 to 2v27, and now it is boot looping.
It says:

WATCHDOG
DFU ZV1B    # The B could also be an 8. The font just shows two squares.

CHECK STORAGE
NO NEW FW

BOOTING...

After ~3 seconds it just restarts instead of booting.

[JulianGro]

Got it fixed.
Apparently, the Web IDE works when you are an DFU mode. You don't connect to the Bangle on the connection button in the top left, but follow the instructions for flashing and it will allow you to connect to your Bangle via bluetooth there.
https://www.espruino.com/Firmware+Update#web-ide

[gfwilliams]

Great - glad you got it sorted! Usually firmware updates done via the app loader should be fine, but occasionally it seems there can be problems, and then the watch won't be able to boot back up without resetting (which I think is what you found).

At that point you have the fallback of bootloader mode, and then you have to use either the Web IDE or an Android/iOS app to update the firmware: https://www.espruino.com/Firmware+Update#android-ios-app