Yep, there is a method to the madness. Something complex like making an electronic product is bound to have tons of pitfalls and most of these behaviors have ra

Yep, there is a method to the madness. Something complex like making an electronic product is bound to have tons of pitfalls and most of these behaviors have rational (albeit twisted by economic incentive) reasons for why the things are the way they are. We were, however, an established client of Qualcomm and working on a new design so we explicitly asked for all bug fixes and they refused except for the ones we could name. We got "lucky" in that no other client had needed both bug fixes at the same time and when the build system broke, the one guy responsible for it was MIA so we got the whole source dump (they didn't even test their fixes together until a client found problems). I've used other Qualcomm products with different engineering support teams that are much better at source control, testing, and even devops but it's a very rare sight within the industry.