AVIC-F20BT Update Success!
So, here is what i did:
First i have edited CARDINFO.CIF.
You need to search for:
OE9R75LQ2MJ2X72EUR
and replace with
X07EURX27EURX30EUR
Then save CARDINFO.CIF and replace the one on update SD Card.
(I'm providing already edited CARDINFO.CIF, so you can just overwrite it)
Then i used TestMode to get RenewalIFLib.dll from HU to edit it.
I copied one from following location \USER\PRG0\APL
Then edited it on PC with HxD.exe and made following changes:
Replaced all (hex) 0350A0E3 with 0050A0E3.
Saved the file, copied to SD Card, then back on HU copied on:
\USER\PRG0\APL
and
\USER\PRG1\APL
Booted SD Card with 2017 update, then for update password entered: PASSWORDPASSWORD
and bam, update installed after 25 minutes.