Yep , hold on there guys. I am sure the NLD team is doing their best at figuring this out ;).
Just want to let you know, It's been little over a month now with my Mavic 2 flashed, I have the signal boost and latest software, no issues so far. Very stable flight and I am very happy with my purchase , definitely worth the 40 pounds.
As far as altitude restriction goes, I guess there is a temporary workaround for this. It's just a theory of mine, haven't tested it yet, because here in the UK we have only flat land :D, BUT! , if you were to stand in a rather high peak like a mountain top which is let's say 400 meters above sea level,your altitude restriction will apply from that altitude , meaning you will be able to fly the 500 m (set restriction) + your current altitude which is 400 meters and that equals 900 meters above sea level.