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Offline Mati  
#1 Posted : 20 November 2019 04:15:31(UTC)
Mati


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Hi,
I want to share my pinout for renewing keys without having to open them.
Everyone knows how much work it costs and how bad the opened and glued keys look ...

Scheme is for connecting the F series keys with HUF PCF7953 from the group:
434 HUF5663
434 HUF5767
868 HUF5661
315 HUF5662
315 HUF56XX

How to:
We need to solder 2 needles permanently to the yellow and white wires. It is important that the needles are very close together and isolated.
Remove the battery from the key.
Power (red) and ground (black) can be soldered to make it easier for us.
Put the needles at an angle of about 45 degrees and press firmly.
Click reset and it's done :)

power_supply.JPG (2,449kb) downloaded 226 time(s). pinout.png (966kb) downloaded 218 time(s). needles.JPG (1,391kb) downloaded 201 time(s).

Edited by user 20 November 2019 04:41:25(UTC)  | Reason: Not specified

thanks 23 users thanked Mati for this useful post.
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Offline domdel  
#2 Posted : 20 November 2019 04:44:21(UTC)
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Wow, Thats super easy thanks very much. Just bought hextag so looking forward to using your idea. Dom
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Offline Levanime  
#3 Posted : 20 November 2019 11:31:17(UTC)
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wow,

thank you
Offline Hassan  
#4 Posted : 20 November 2019 13:40:27(UTC)
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Hello
How to know pcb is huf type without opening?
Another question how make difference between key serief cas4 and fem 434mhz?
Offline PDXAutoworks  
#5 Posted : 20 November 2019 19:13:06(UTC)
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Thank you, this is gold.

Is this possible with e series FOB that has comfort access slot ?
Offline Hassan  
#6 Posted : 20 November 2019 22:02:04(UTC)
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Any help plz how to make diffrence between fem key and cas4 for 434mhz?
Or needed from pcb?
Offline PDXAutoworks  
#7 Posted : 22 November 2019 13:13:31(UTC)
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Originally Posted by: Hassan Go to Quoted Post
Any help plz how to make diffrence between fem key and cas4 for 434mhz?
Or needed from pcb?


When you remove the battery, it is printed on the board. Not sure if that helps your question.

Offline Willisodhiambo  
#8 Posted : 15 December 2019 19:31:13(UTC)
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Do the reset keys work? I once reset a key and remote stopped working. Can start car at steering but cant open doors. I still have the key. Will try a reset.
Offline Autohex_II_BMW  
#9 Posted : 15 December 2019 22:54:21(UTC)
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Originally Posted by: Willisodhiambo Go to Quoted Post
Do the reset keys work? I once reset a key and remote stopped working. Can start car at steering but cant open doors. I still have the key. Will try a reset.


what was the frequency for your key?
Offline sixcode  
#10 Posted : 04 January 2020 04:42:56(UTC)
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thanks for this info, can someone tell me what the connector type is that is used on the pcb as i can not find it on google

see picture

connector
Offline RocketSurgeon  
#11 Posted : 04 January 2020 09:28:22(UTC)
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Originally Posted by: sixcode Go to Quoted Post
thanks for this info, can someone tell me what the connector type is that is used on the pcb as i can not find it on google

see picture

connector


Molex Picoblade. I had the same question when I wanted to make myself a key reset harness with alligator clips and probes.
thanks 2 users thanked RocketSurgeon for this useful post.
Offline sixcode  
#12 Posted : 06 January 2020 01:03:22(UTC)
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Originally Posted by: RocketSurgeon Go to Quoted Post
Originally Posted by: sixcode Go to Quoted Post
thanks for this info, can someone tell me what the connector type is that is used on the pcb as i can not find it on google

see picture

connector


Molex Picoblade. I had the same question when I wanted to make myself a key reset harness with alligator clips and probes.



thanks, yes that was my intention also
any sours to buy the correct one?

Edited by user 06 January 2020 01:19:37(UTC)  | Reason: Not specified

Offline cveti72  
#13 Posted : 08 January 2020 09:17:41(UTC)
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Thanks for info. Super...
Offline RocketSurgeon  
#14 Posted : 08 January 2020 10:04:59(UTC)
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Originally Posted by: sixcode Go to Quoted Post

thanks, yes that was my intention also
any sours to buy the correct one?

I got mine on Ebay. I think I paid like $4 for 10 of those connectors. I had to rearrange the wires for the correct pinout, but that's easy.
thanks 2 users thanked RocketSurgeon for this useful post.
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