[Tatsu333]

OK - so it really HAS been a long time since I played around with ECUTEK self-tuning!

I've made my cold start changes in ProECU and saved it as a new ROM file, but I can't figure out how to access the modified ROM file to flash it with ECU Connect (the bluetooth app).

When I search around, it looks like only a master tuner can upload the ROM file to my ECUTEK Cloud to be flashed via bluetooth. Not sure if this is something new, or if I always flashed my car using my laptop and just used the bluetooth functionality for logging...? I feel like that may have been the case, but I'm not sure.

My laptop was reformatted a couple of years back, so it doesn't have the software on it anymore and it will need to be reinstalled. If I reinstall it there, I presume it will then be the fully updated version that locks out changes to things like DTC's, etc., but my understanding is that I can still use it to flash a tune that has these changes in it, just not make further changes to those parameters.

So - I guess my question at this point is whether there is a way for me to upload / access the updated ROM via the ECU Connect app on my phone to flash it via bluetooth?

EDIT: In the meantime, I've reinstalled the software on my laptop and successfully flashed the revised ROM via the cable. Only problem is now that I've used the latest software version on my laptop, it won't allow me to open the old version on my desktop PC! I'm going to look into whether there's a way around this limitation.

At this point, though, the limitations of the newer version RE: disabling DTC's, repurposing sensor inputs, etc. aren't really relevant for me, so I may just go with the newest version on both...