Same prob here a few times, prob rushed the code then car cut out, wouldn’t start after the code correctly put in, had the indicator flash to acknowledge the code being ok, done the valet mode and it started.
I found when this happens then you just need to input your code wait for the indicator...
Yes you’ve bought the correct lights, the new fl
ones have different plugs on them, the two options are to get someone that knows how to do adapt the wiring or the easy option is to buy the modules( plug & play)
I personally bought the k electronics ones, 2 mins to fit
You need to buy a set of modules from k electronics, they have the correct adapters to link to your pfl harness, they are £300, without them you can’t get them to plug in or give the dynamic sweep, unless you get someone to do the wiring which isn’t to easy, @DJAlix does it