[Mwahab]

I successfully exchanged F30 FEM with one key working 434mhz
I decided to make 2nd key, the used key is PCF7953 HUF5663 434mhz
I used its file and wrote it with vvdi prog.
Learnt in car, ignition started but no remote function.
I refreshed it again with same file, result no
Refreshed with another file with the same frequency huf7673 as I remember, same result
I even tried another original used key, its the same.

I searched alot online but the answers were random, some said it will work after enabling with ista, others said it needs a certain refresh file because the pcf file is too old, and others said it’s impossible and go buy a new key.
I read the transponder of these two keys, and another pair of a different car
I found out that there are 3 lines can’t be erased from the EEPROM, whatever i do or erase, these 3 lines remain present, they are not in eeprom or errom VIRGIN files, or even in the working keys, that was my notice.

[pepsicola]

Even with new keys I had problem lately. New key(aftermarket) I made can start the car, frequency is correct but no keyless or remote function. Maybe a different issue than yours, CGDI advice to remove a part from their key. I have yet to try it.

[Mwahab]

Even with new keys I had problem lately. New key(aftermarket) I made can start the car, frequency is correct but no keyless or remote function. Maybe a different issue than yours, CGDI advice to remove a part from their key. I have yet to try it.

I have this same issue

From my research the issue is in EEPROM file we use, there must be another file or different erasing technique.

[huzefa]

I successfully exchanged F30 FEM with one key working 434mhz
I decided to make 2nd key, the used key is PCF7953 HUF5663 434mhz
I used its file and wrote it with vvdi prog.
Learnt in car, ignition started but no remote function.
I refreshed it again with same file, result no
Refreshed with another file with the same frequency huf7673 as I remember, same result
I even tried another original used key, its the same.

I searched alot online but the answers were random, some said it will work after enabling with ista, others said it needs a certain refresh file because the pcf file is too old, and others said it’s impossible and go buy a new key.
I read the transponder of these two keys, and another pair of a different car
I found out that there are 3 lines can’t be erased from the EEPROM, whatever i do or erase, these 3 lines remain present, they are not in eeprom or errom VIRGIN files, or even in the working keys, that was my notice.

how many key in the car ?

[Mwahab]

2 Already enabled, and the one i am trying to add is the third one.

[TheNine90]

I read somewhere that key position 1&2 are the only keys for remote functionality.

[Mwahab]

I read somewhere that key position 1&2 are the only keys for remote functionality.

Thats for E series not on F series.

[Mwahab]

Solved. thank you all

[DJenka]

Solved. thank you all

And what was the problem?

[Mwahab]

Solved. thank you all

And what was the problem?

The virgin file was the issue
Here is it.

HUF5663_434MHZ EEPROM TRANSPONDER.txt
File Type:
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Size:	73 bytes