citroen c4 software update bsi diagnostic radiology

I would be pleased to hear about any other member's experience using a Lexia-3 on the C4, especially from anyone who has got to work as it should. 'Your computer must be connected to the internet before starting the Lexia application', 'It's not just Chinese Lexias, even the official dealer equipment has difficulty with 100% CANBUS equipped vehicles', 'Poor electrical contacts in the vehicle OBD socket or the Lexia cable connecting plugs', 'The supplied software cannot do everything that the Citroen dealer's software does', 'Poor quality components used in the Evolution interface', 'It's a Chinese clone of the genuine ACTIA interface and therefore it is inferior to the real thing', There seems to be a lot of anecdotal evidence quoted in various forums as to the reasons why Chinese Lexias have difficulty 'talking' to the C4 CANBUS system, eg: However on my C4 2.0HDI the Global diagnostic test can establish dialogue with only 2 (Injection and one other IIRC) of the 31 systems (of course some of these 31 are dependent on the car specification and options and may not be physically present). My recent China sourced Lexia-3 purchase has worked OK communicating with my XM 2.1TD (with the Lucas EPIC injection system) and has read everything apart from the airbag system (I wasn't even aware that the XM airbags had an associated ECU). Has anyone out there had any success at all using a Chinese sourced Lexia-3 to communicate fully with a Citroen C4?

Citroen c4 software update bsi diagnostic radiology