2006 audi a4 supervag 2 issue

[MonSter911]

hi dk

i have an audi a4 that came in for a spare key. i read pin code with supervag and i try to learn key. process took sometime and failed. now both keys do not start vehicle and fault code : p1750 immo blocked shows in ecu module. dash shows : lo 3-3. how to resolve this isssue ?

details of vehicle :
audi A4 2006
engine : 2l tdi.
vag no : 03g 906 016gn

instrument :
8 e0 920 901D

any help will be appreciated
thanks

[raptureready]

I would do a battery reset, and then leave ignition on for about 3 hours and try and code just the original back in 1st without switching ignition off, give it a try, im not sure I would plug into that car with supervag unless its the original one. regards