Renault Koleos CLIO 4 Smart Remote Key 4 Buttons 434MHZ With PCF7941 Chip

[TERMINATOR1000]

I bought 2 cards from ali. Seller declared that its pcf7941. But i scanned it detected as pcf7961

Don't worry PCF7961 is ok Megane Scenic , read Hitag2 pg RCF SYNC , pcf7961 already used on Renault Fluence keys ( https://www.youtube.com/watch?v=kMb5m2TH3Yg ) , and Laguna ???

[drugowaz]

I didnt tested yet.

[TERMINATOR1000]

I didnt tested yet.

Hitag2 read all page , push all button ( 2 /3 time ) , make second Hitag2 reading and if code change Cards OK .... like on my picture Page Sync RCF .

[drugowaz]

Ok will check tomorow

[drugowaz]

checked card in pg3 of remote control section.bytes changing after button push. when scan again

[TERMINATOR1000]

checked card in pg3 of remote control section.bytes changing after button push. when scan again

in this case if bytes change , remote control OK
Exemple :
Sync = 80 00 00 76 >> push many time all button >> Sync = 80 00 00 74 >>> bad cards money lost ( specially Chinese PCF7952 cards ! )
Sync = 1C 00 00 0E >> push many time all button >> Sync = 2A 00 00 FC >>> card OK & firmware OK .

REMEMBER THAT : NEVER BUY PCF7952 CHINESE CARD NEVER NEVER ! MANY CHINESE CUSTOMER ALREADY CONSTAT THIS FACT IN FRANCE

[voltec]

If you are looking for cards to Megane / Laguna with PCF7941 chip
I recommend it :
http://supercarkey.com/05-chanpin/p-001-1.asp?id=4563
but one note
Requires precoding - I use FVDI ( china) and work great ( RF too).

They also have cards ready, but do not buy, because they are too wide.

I personally look for good shell, now all (made in china) are too wide.

[TERMINATOR1000]

If you are looking for cards to Megane / Laguna with PCF7941 chip

Requires precoding - I use FVDI ( china) and work great ( RF too).

.

Hi
???
what kind of precoding ?
???
B.R

[voltec]

Hi
???
what kind of precoding ?
???
B.R

these option from FVDI:
LagIII.JPG
after precoding looks like this:
lagIIIpre.jpg
P1- P6 always look the same
P7 is different for each card

[TERMINATOR1000]

these option from FVDI:
LagIII.JPG
after precoding looks like this:
lagIIIpre.jpg
P1- P6 always look the same
P7 is different for each card

Sorry to contradict you , push all button 2 time ( with battery sure ! ) and P7 will be changing ! ( it's this particularity who indicate if remote control will be fonctional )
This type of cards just need good firmware to work fine , no need Hitag2 precoded ...

[voltec]

Sorry to contradict you , push all button 2 time ( with battery sure ! ) and P7 will be changing ! ( it's this particularity who indicate if remote control will be fonctional )
This type of cards just need good firmware to work fine , no need Hitag2 precoded ...

Ok
but
Tell me one thing:
If I don't precode, push all button 2 time and P7 will be changing ( the fact is changing), if it codes such a card in car an RF not work,
but if I precode card - P7 changing too ( push 2 time all buttons) and card work fine RF too

after precoding changing only two line P3 and P7

[TERMINATOR1000]

no need precode just need good firmware inside PCF chip , if don't remote control :ONLY ONE SOLUTION open cards and use renew key programmer !

Very good PCB ( real hand-free card ) , but Chinese brain + bad firmware ! Need tool to renew my stock now , any one could confirm me that XHORSE VVDI Key Tool can do the job ? ( only real fact ! )

[HeXeN]

I need tested precode for Megane III pcf7952 HF card.

[TERMINATOR1000]

hi
just for info : CHINESE PCF7952 NOT WORK
Thanks

[HeXeN]

Forgot to confirm that CN HF card works 100% ok. You just need good source. And the other one you think not work is probably only for Koleos. That's all.