Ideally you need the "switched off bulb tests" to be coded out using the BMW software (and OBD/USB lead) which is readily available else you'll find LED bulbs will flash noticeably every second or two in response to the testing.
The H7 dipped/high bulb drop-ins won't throw dash errors as they draw enough current but you'll want to disable testing when they're off or they'll flash too.
Your link above looks like a tool I’m not familiar with but it seems to make it easy to understand. Carly can do it too…Curious, I didn't realize this could be coded out -- do you have any details on the process if you've done this? Like what program and the process? I'm guessing it's something like this? : E46 coding from : e46 fanatics forum
I tried putting orange LEDs in my headlights (Xenon, facelift) "turn signal" bulbs and got the fast blink, so I replaced them with standard bulb elements, but would really prefer LEDs for the turn signal bulbs.
I haven't yet done any coding, the general process isn't crazy to me (I do hardware/electronics/software design, amusingly some bits and pieces in newer cars) but the devil is always in the details! I found this thread showing the use of NCS Expert -- is this more or less the process you followed?:
NCS Expert walk through on e46 forums
I guess there's also NCS Dummy which is supposed to help with translation of messages?
Agreed. Costs £20 and you simply select from tick boxes what you want to ignore.BMW Scanner 1.4 run on a laptop has the ability to switch off the bulb check, its less expensive and easy to use over the NCS Expert and Inpa option.