Once you completed your west build , your image is located under the build directory
$ cd ~/work/pinetime/zephyr/build/zephyr
here you can find zephyr.bin which you can flash
I use Openocd to flash.
Just connect : telnet 127.0.0.1 4444
.. code-block:: console
program zephyr.bin
::
the PineTime watch is read/write protected (at least the one I got)
executing the following : nrf52.dap apreg 1 0x0c shows 0x0
Mind you, st-link does not allow you to execute that command, for this you will need a J-link.
There is a workaround using the GPIO of a raspberry pi or an Orangepi. (in this case you won’t need an external programmer at all)
(You can find an example for the orange pi in my repo :[https://github.com/najnesnaj/openocd](https://github.com/najnesnaj/openocd).)
You have to reconfigure Openocd with the –enable-cmsis-dap option.
Unlock the chip by executing the command:
> nrf52.dap apreg 1 0x04 0x01