Bangle (original) won't restart after installing app

Hi.

I installed the Red Torch app on my Bangle.js (original), and got the "Hold BTN3 to reload" message. BTN3 did nothing. Neither did 1+3 return me to the clock.

Neither does using 1+2 to restart, nor 1+2 and release 2 for a no-software restart. They display these messages:

WATCHDOG
DFV ZV05

Then a new screen:

Bangle (JS in a watch logo)
2V09.79
e6:ba:3e:fe:95:1e
Copyright 2021 G. Williams

The only thing it will respond to on that screen is the 1+2 forced reset. I'm about to use that to turn the thing off to save battery.

I can connect using Bluetooth. I removed Red Torch. The Bangle displayed the same "Hold BTN3" message, and again holding BTN3 did nothing. Now "My Apps" in the web interface shows nothing. I promise I had apps installed.

I followed the instructions here: https://www.espruino.com/Bangle.js#resetting-without-loading-any-code, installing default apps. This worked, and the system inexplicably installed my default apps. Aaaand ... BTN2 does nothing, I can't get to Setup or anything. And 1+3 ... makes the time jump ahead 5 hours, from correct to 5 hours fast?

I tried installing a different launcher (the Desktop Launcher) but this did nothing.

I know you'll say to install the latest firmware, so I downloaded it to my Android phone. The procedure (https://www.espruino.com/Bangle.js#firmware-updates) says to upload to a device named DfuTarg. There isn't one. Attempting to upload to the Bangle device (which is listed) results in the message, "Upload failed: DFU CHARACTERISTICS NOT FOUND".

How to proceed?

That's extremely strange - but to update the firmware, the instructions you mentioned at https://www.espruino.com/Bangle.js#firmware-updates say:

• Long-press BTN1 + BTN2 for about 6 seconds until the screen goes blank
  
• Release BTN2
  
• Release BTN1 a moment later while ==== is going across the screen
  
• The watch should now be in Dfu mode
  
  

I think you missed those steps. When in DFU mode the display should show DFU START in the blocky font, and I bet yours had booted back up to a clock face or the Bangle.js logo?

@Gordon, thanks. You were completely correct. It's working now.

Great - glad you got it sorted!