Just reading a forum where someone mentioned updating the firmware on their clone Lexia interface. Is that possible and if so, how do you go about it? Mine reads the C3 fine, but is having trouble with in-laws HDi Picassos, one a 2001 and one a 2004. It's only finding some ECUs and instead of YES or NO under faults (when it does the list of ECUs querying each one at a time), it's putting a question mark and won't connect to injection ECU.
As an aside, the C3 HDi I cured by replacing one Delphi injector with high leak-off and repairing the turbo is once again back with the same faults of hard starting and white smoke, low power and rattling! Leak off is showing 3 duff injectors including the scrapyard replacement one, which when tested after fitting had the same leak-off as injector 1, the only very good injector then and now!
I've got pics of all 3 leak-off tests I've done over past 10 months which I may put on here for sake of interest. Couldn't make it up with this car!
Lexia shows cylinder 3 injector correction error or something (did it late last night) and periodic injector resetting fault. 3 was the worst for leak-off, but only very slightly more than 2 and 4. All three had over double the leak-off of injector 1.