Page 5 of 6
Re: Gm Seed key algorithms
Posted: Wed Aug 03, 2022 1:38 pm
by antus
I think efilive keys should be standard, so it was probably locked by the tuner. just boot it in recovery mode and do a read in pcmhammer and look at the word at 0x4002 or 0x6002.
Re: Gm Seed key algorithms
Posted: Thu Aug 04, 2022 6:40 pm
by VX L67 Getrag
Ahh cool thanks heaps for that info Antus!
Re: Gm Seed key algorithms
Posted: Fri Dec 16, 2022 1:21 am
by teknik@speedparts.se
Hi,
I have problems with a seed/key for Saab and Opel ESP unit models around 2008. I have 2 pairs but can`t find any algo match. Anyone that have this? Seed request is level 0x27 03
seed 0x1E3A key 0xBDFF
seed 0xBB55 key 0x1890
If any one have something let me know
Regards Micke
Re: Gm Seed key algorithms
Posted: Fri Dec 16, 2022 6:11 am
by Gatecrasher
27 03 is DVT access. Those were only ever used internally at GM, so I don't think the algos ever got out in the wild.
Re: Gm Seed key algorithms
Posted: Fri Dec 16, 2022 10:13 pm
by teknik@speedparts.se
Gatecrasher wrote:27 03 is DVT access. Those were only ever used internally at GM, so I don't think the algos ever got out in the wild.
Oki strange they use it for this cars
The TechII calculate it.
Re: Gm Seed key algorithms
Posted: Fri Dec 16, 2022 10:23 pm
by antus
a similar approach as documented in post #1 but on the saab card might get results.
Re: Gm Seed key algorithms
Posted: Sat Dec 17, 2022 12:20 am
by Gatecrasher
Well that's interesting. GMs own documentation says it's for manufacturing.
This is the requestSeed level for enabling vehicle manufacturing specific device control restrictions (as opposed to having service device control restrictions enabled).
Sounds like someone needs to get into one of those Tech2 cards and dig out the algo.
Re: Gm Seed key algorithms
Posted: Sat Dec 17, 2022 12:59 am
by teknik@speedparts.se
Gatecrasher wrote:Well that's interesting. GMs own documentation says it's for manufacturing.
This is the requestSeed level for enabling vehicle manufacturing specific device control restrictions (as opposed to having service device control restrictions enabled).
Sounds like someone needs to get into one of those Tech2 cards and dig out the algo.
I have cards with DB extracted from bin if someone like to dig
Thats not my biggest skills:-(
Re: Gm Seed key algorithms
Posted: Sat Dec 17, 2022 11:23 am
by Tazzi
teknik@speedparts.se wrote:
Oki strange they use it for this cars
The TechII calculate it.
Is it used at any point for updates or programming sequences with GMs online techline?
Re: Gm Seed key algorithms
Posted: Sat Dec 17, 2022 4:14 pm
by teknik@speedparts.se
Tazzi wrote:teknik@speedparts.se wrote:
Oki strange they use it for this cars
The TechII calculate it.
Is it used at any point for updates or programming sequences with GMs online techline?
GM online techline i don`t know what it is. The seed/key is used when you re config ESP unit. Se can logg.