Bought locked PCF7941 chips

[TERMINATOR1000]

Hello
In Chinese key there are locked ?
Yes you can

[reks13]

Not true, if ide is all 5, this chip it faulty from nxp factory, they steal it and sell you.
move to trash.
what is exact part number?

[bearheroes]

Not true, if ide is all 5, this chip it faulty from nxp factory, they steal it and sell you.
move to trash.
what is exact part number?

Please tell me how they they stole them?

Probably there is wrong checksum Because ID can't change so easy...
BTW PCFProgrammer is not so usefull...VVDI can do the same job
PCFLogger is useful but needs MK3 full to get all dumps...
Or any other snifing-hacking tool-method...

[lidons]

If it only comes 55-55-55-55 is why this virgin FULL and another possibility is to try with another different RFID device.
Many parameters have to have a PCF. PCF can be configured at will.
When a PCF is not configured, Hitag type of the market, is no longer readable. With RFID machine, that is why the machine picks up a wave of frequency 125Khz, but is not able to translate that information to a real Hitag typology reading data.
The PCf is fine, but it is not configured.

[solitaire]

.....
BTW PCFProgrammer is not so usefull...VVDI can do the same job
...

with PCFprogrammer You can write pcf7945 (audi, bmw_e), vvdiprog have bug for this type pcf
write ok, but key not work
https://www.youtube.com/watch?v=5i7n3-LTnUY
https://www.youtube.com/watch?v=6K-g4-PVtYs&t=9s

[bearheroes]

with PCFprogrammer You can write pcf7945 (audi, bmw_e), vvdiprog have bug for this type pcf
write ok, but key not work
https://www.youtube.com/watch?v=5i7n3-LTnUY
https://www.youtube.com/watch?v=6K-g4-PVtYs&t=9s

Vvdi can write every pcf without problem. The problem is dumps. If someone has proper dumps it will work.


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[solitaire]

Vvdi can write every pcf without problem. The problem is dumps. If someone has proper dumps it will work.


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I tested audi and bmw_e
with pcfprogrammer no problem - key work
with vvdiprog - key not work
I dont known where is problem

[bearheroes]

I also tested and work perfect.


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[solitaire]

I also tested and work perfect.


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did You tested audi smart key?
vvdi 4.5.7?

[TERMINATOR1000]

If it only comes 55-55-55-55 is why this virgin FULL and another possibility is to try with another different RFID device.
Many parameters have to have a PCF. PCF can be configured at will.
When a PCF is not configured, Hitag type of the market, is no longer readable. With RFID machine, that is why the machine picks up a wave of frequency 125Khz, but is not able to translate that information to a real Hitag typology reading data.
The PCf is fine, but it is not configured.

The Chinese chips get tired ! no firmware in pcf7943 41 52 61 , You will sell us his without resistance !

[bearheroes]

BCM2 keys 868


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[solitaire]

BCM2 keys 868


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tomorrow i will test

[lidons]

The Chinese chips get tired ! no firmware in pcf7943 41 52 61 , You will sell us his without resistance !

I will answer your question later, after doing some tests and videos.
But by hitag you can NOT do anything in your case.
You need a Firmware for PCF7941ATT and record it.
Now has no parameters within the EEP and Erom for a readable configuration on an RFID machine.
In short, your RFID machine does not know what you are reading, you do not know where the UID is and what format your PCF is.

[reks13]

I repeat, if ide is 55 is faulty ic, ide program one time when chip is produced and marked. It OTP ! Move to trash!

[TERMINATOR1000]

I repeat, if ide is 55 is faulty ic, ide program one time when chip is produced and marked. It OTP ! Move to trash!

with your logic , all Chinese pcf is faulty ! why somme positive feedback ?
SOMME ONE CAN USE IT .....