Fiat Grande Punto key ban

[jodge]

Hello
This is a family business i can't hide

2007 Fiat grande Punto 1.4 Petrol the key is lost and banned from the car. And ofcourse fund. ()
As far as is know the good key serials and the banned serials stored in the body computer eeprom.
I looked around and i found this gem. 93c46 (i'm in the gsm business since '95 and the smd soldering, good ol' serial eeps not really bothering me)
I was trying to delete the banned key serial. No success
i was trying to replace the banned key serial. No success
I just download here some similar eep dump and trying to figuring out the checksum or the security method that protecting this area but unfortunately not found yet.
The eep is currently in a socket i can test and reprogramm quick and easy

Before i move further i'd like to ask

Can i delete the banned key from the dump or this idea is just a waste of time?
If yes the solution is public and can you share?
If not somebody can do it for me free or money?
If not can i upload other dump w/o killing something?
If the new dump idea is working i guess i must learn the keys the immo and everthing else with the alfaODB? (i have alfaodb i'm able to do almost everything but the ban list not reachable)
Why mother? Why?

thx

[mikajna]

You have easiest method to change transponder PCF7946 in your banned key, than need to find someone who can precode and programme that key to your car, that key will have new ID after changing transponder...

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[jodge]

Thx the idea but unfortunately i was tried before and the new transponder is not working at all. Probably just was a scam
Do you know a trustable seller?

[yellowstilo]

there should be a byte which indicates the number of disabled keys - you should change that number too....

[ubistvo]

Do you have a dump from BSI and if you have post here

P.S

Where did you found 93C46????
You should find 93C86 !!!!!!!!!.

93c86(28000766), 8pin, 2048 Bytes
Fiat: Grande Punto, Fiorino, Bipper Tepe, Nemo, Mito
ID: 46
Transponder Type: PCF7936 or PCF7946/47 Remote key

[jodge]

Sorry it was a mistake of course it's 93c86

I have elnec beeprog i can read it with two different settings pls choose the correct one

P.S
Your stuff is going to PM

[jodge]

there should be a byte which indicates the number of disabled keys - you should change that number too....

it's a great idea i found the counter. But it seems there is another protection. Still not sucess
I have lot of question

Can i buy a used key and add to the bsi or the key (transponder) storing unique data too? (I asked the local dealer they using a preprogrammed keys)
Possible to delete the banned key and re-add again?
Where can i buy preprogrammed transponder chip?
I got an offer from a forum member he able to remove the banned key from the dump. He asking money what is the acceptable price for thins kind of operation?

thx

[godfathertre]

just get a locksmith in your country to delete the key with proper tools and save yourself time.

[p1et]

just get a locksmith in your country to delete the key with proper tools and save yourself time.

The thing is, that the key is actually deleted but he found it and want it to work again. And for most of us, it is impossible to make him work again but for sure there are some people who knows how to edit dump to activate that key again... That's why somebody want payment for this. But yeah, easiest way is go to auto locksmith who can do Fiat remote keys and he will know what to do to make your key work again. It will have different chip but will work, and that is what you want.

[jodge]

The thing is, that the key is actually deleted but he found it and want it to work again. And for most of us, it is impossible to make him work again but for sure there are some people who knows how to edit dump to activate that key again... That's why somebody want payment for this. But yeah, easiest way is go to auto locksmith who can do Fiat remote keys and he will know what to do to make your key work again. It will have different chip but will work, and that is what you want.

The first honest and straight answer i really appreciate it!
The local fiat dealer is crazy, about the prices.. the local locksmith is a joke. I have brian, tools and my mother going to kill me so i must do it.
Thx everybody

[mikajna]

The first honest and straight answer i really appreciate it!
The local fiat dealer is crazy, about the prices.. the local locksmith is a joke. I have brian, tools and my mother going to kill me so i must do it.
Thx everybody

Mate dont be funny, you have "brain", but you dont have proper tools and knowledge for this job, we are somewhere also local locksmith and please dont make a joke from us....put money to your pocket, and straight to some workshop, they will solve your problem!!!

[p1et]

Yup. If no good locksmith in your area, just send BSI module to somewhere in your country and he will make your key work again.

[szengen]

In Poland you will need to give this key for 500 pln,You are doing on tmpro2, you will add skp900,By the Fiat 500

[jodge]

Mate dont be funny, you have "brain", but you dont have proper tools and knowledge for this job, we are somewhere also local locksmith and please dont make a joke from us....put money to your pocket, and straight to some workshop, they will solve your problem!!!

"Go mate find a proper locksmith" yeah i found an airhead clown with full of cloned-fake chines stuffs


You don't know me, and you are wrong. It happens. I have proper tools and knowledge for this kind of operation.

Just for fun:

Weller WHA300 hot air station
Weller WSD81
Elnec Beeprog with all kind of adapters

And some interesting facts about the dephi eeprom variables

0x80-0x123 = Transponder/keys area
0x80-0x83 = first stored key 
0x84-0x87 = second stored key
0xA0 = stored key counter
0xA2 = banned key counter
0xA4-0xA7 = banned key and probably room for 3 more keys
0x122-0x123 = key area checksum

Copy of the transponder/keys area, they must be the same!
0x124-0x1C7

System id's
0x4-0x9 = Florence code
0x7D6-0x7DD = software number
0x7F0-0x7F5 = homologization number
0x7E3 = sofware version
0x7F6-0x7FA = ISO code
0x7FE-0x7FF = System ID checksum

BTW the banned key is working again.

bye

[mikajna]

"Go mate find a proper locksmith" yeah i found an airhead clown with full of cloned-fake chines stuffs


You don't know me, and you are wrong. It happens. I have proper tools and knowledge for this kind of operation.

Just for fun:

Weller WHA300 hot air station
Weller WSD81
Elnec Beeprog with all kind of adapters

And some interesting facts about the dephi eeprom variables

0x80-0x123 = Transponder/keys area
0x80-0x83 = first stored key 
0x84-0x87 = second stored key
0xA0 = stored key counter
0xA2 = banned key counter
0xA4-0xA7 = banned key and probably room for 3 more keys
0x122-0x123 = key area checksum

Copy of the transponder/keys area, they must be the same!
0x124-0x1C7

System id's
0x4-0x9 = Florence code
0x7D6-0x7DD = software number
0x7F0-0x7F5 = homologization number
0x7E3 = sofware version
0x7F6-0x7FA = ISO code
0x7FE-0x7FF = System ID checksum

BTW the banned key is working again.

bye

Well done, nobody judging you in advance, we just tell you to find someone who have tools for that, like tmpro2 or something similar to programme new transponder, its losing time to brake whole dump for fixing one key, but you do that very quickly, well done for that

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