Sending Assisted GNSS (A-GNSS) to Bangle 2 GPS (AT6558)

Sure I am "fishing", I've bought this watch for fun... Am I desiring too much?

I provide you with what I know and the products of my work, for free. I'm not only doing that, but I work every day answering questions and improving Espruino for nothing more than the small profit I made on your initial purchase of the Bangle.

I said the Bangle.js had GPS, I've made it so you can totally access it from code, told you the exact model number and even linked to a datasheet most of which works. That's far more than any other watch manufacturer I'm aware of.

If there's not 100% accurate documentation then by all means go and find it yourself, contribute the result and I will happily add it to the docs so other users can find it.