Autel MaxiIM IM608 Audi add key & all keys lost Yes and No

Autel MaxiIM IM608 2014 Audi A4 UK CNHC downloads eeprom data ok, but error message, reading IMMO failed, I have strong internet and battery maintainer, any IM608 users have tips for this car? I also tested 2006 VW Caddy Diesel UK All keys lost Via OBD
generate Dealer key, Need strong internet, good job.

Experience for sharing:

About the Passat its never work by OBD only eeprom but I do them without desoldering just take few readings to be safe.

Here is answer from Autel:

If you can’t view the picture, you can check the table below, which is the same as the content on the picture.

Item	Model	Year	System	Add key	All keys lost
1	A1	2011-2019	IMMO IV	Y	Y (dump mode)
2	A1	2019+	MQB	N	N
3	A3	2013+	MQB	Y (*50%)	N
4	A4	2009-2014/6	BCM2	Y	Y (partly dump mode)
5	A4	2014/6-2016/8	BCM2 encrypted	N	N
6	A5	2009-2014/6	BCM2	Y	Y (partly dump mode)
7	A5	2011-2019	BCM2 encrypted	N	N
8	A6	2011-2019	BCM2	Y	Y (some are supported)
9	A7	2010-2018	BCM2	Y	Y(some are supported)
10	A8	2010-2018	BCM2	Y	Y(some are supported)
11	Q2	2017+	MQB	Y (*50%)	N
12	Q3	2012-2019	IMMO IV	Y	Y (dump mode)
13	Q3	2019+	MQB	N	N
14	Q5	2009-2014/6	BCM2	Y	Y (partly dump mode)
15	Q5	2014/6-2017	BCM2 encrypted	N	N
16	TT	2015+	MQB	N	N