[Solved] Trouble performing BLE DFU update on Bangle.js

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sebi
@Gordon:

Had you pressed any buttons after that point?

No.

Maybe you could record a video to show what happens?

See enclosed video.

That's because you have to connect when the watch is in DFU mode

Indeed.

Is yours a Nodeconf Bangle.js?

😕 not exactly ...it is the F watch my nephew got for his birthday I hacked.
I built the firmware using command make clean && BOARD=BANGLEJS RELEASE=1 make, removed the flash protection and uploaded Espruino using SWD onto the watch.

Sorry for that Gordon: I just couldn't resist installing your software onto the watch (I do own a a Pico, a Puck.js and your book though).

1 Attachment
- BangleJS_entering_DFU_mode.mov

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MaBe in reply to @sebi

Make sure you get the Bangle.js into "DFU Started" mode like in (1)
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MaBe in reply to @sebi

Check around 00:18, BTN1 is pressed too long and Bangle.js reboots.

When ==== shows, just release BTN2 and short after that BTN1

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