The connector was soldered after it was installed.

That’s going to complicate things, then.

Because I had some excellent results with the small antenna, and considering it for the next design update, in order to get rid of the external plastic holder, or at least replace it for something more comapct.

Oh, I see. Perhaps I’ll try both then. Either way, given the amazing shipping times and limited shipping options from China, it will be at least 2-4 weeks until I can try anything. In the meantime, could you please provide instructions for disassembly, so that I can have a go at mounting the small antenna inside the model D? In particular, disconnecting and reconnecting the screen; as well identifying any items that are particularly fragile or for which special care must be taken.

I have somehow managed to reassemble it such that the GPS is working quite well but the cover is loose, so I’m not expecting that to last.

Did it still have power? I didn’t consider that long sync sessions will waste all battery, this is on the list for the new firmware too.

It had been connected to power for nearly 24 hours at that point, as I didn’t go out anywhere on Sunday. I almost always sync offline data when charging now, regardless. When I couldn’t wake it up, the power button also didn’t work, which led me to the belief that it had frozen/locked-up – I had to press the reset button and after that the power button was able to be used to power it up.