change firmware banglejs 2

Hi, I wanted some information, can I buy one of your Bangle.js 2 devices, reset the firmware and flash my firmware in ZephyrOS?

Thanks, I await for news!

Yes. When you buy it, it is yours, so you can do anything you want with it including flashing any other firmware you make yourself.

see also https://hackaday.io/project/175577-hacka­ble-nrf52840-smart-watch

EDIT: and BTW since you are starting almost from the scratch just FYI - there are more hackable nrf52840/52832 watches so if you'd rather get different shape, display type, buttons there are some others (also some are quite cheap on aliexpress, one example the Magic3/C17 here ). However Bangle2 is maybe the best one - it has SWD on the back and everything is working including HR sensor which is an issue on other watches, also the screen is always on and sunlight readable which is quite unique.

hi, any photo show how to connect the st link to bangle s swd?

use a 2pin pogo pin? but it doesnot seem to be same size as pinetime, so not 2.54mm one? thx

I use original charging cable that came with it plugged into my cable that has usb female on one side - cut from some generic usb extension cable I had - something like visible here https://github.com/fanoush/ds-d6/blob/ma­ster/photos/dfu-serial-updating.jpg here it is for serial but bangle has SWD on usb data pins. Have no photo for now but can make one with bangle 2 and stlink.

ok i will figure how myself.

i did similar 10yrs ago when seagate hdd has bug and i need to connect to it.

may be when i really connect it i consult you people which pin connect which leg then.

thx

There's a picture and info on exactly how to wire to an nRF52DK here: https://www.espruino.com/Bangle.js2+Tech­nical#swd