talk about the 7941 7946 7947 Chip for renault key

[sharingkey]

As You know now some megane card in china already using 7941 replace 7947 chip !
(as 7947 is expensive and limited offer by NXP company!)
although the megane card with 7941 is work ok but often will take some proplem like the power using out fast.
someone now try using other chip to replace them.

becuase 7947 is flash. need precode before programmed. often using haitag 2 and tango can make it !
but 7946 not need precode,it can program easier and not write any data before program,becuase it not flash !
One of them said can replace 7947 by 7946. and work excellent. will share the detail here after some times.

if any one have expereince for that NXP chips ,we can share the information here.

[lpf01]

Does anyone have original 7941 data for these renault megane cards?

One of my friend tried to precode it manually and card not accepted by car yet but still unlocked, any idea to make it work again?

[gtmech]

One of them said can replace 7947 by 7946. and work excellent. will share the detail here after some times.


it wont work, the remote functions wont operate, it will only start the car