Unlocking locked ECM (E40)

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03-08-2019
jamesr

Unlocking locked ECM (E40)

I was given a tuner locked E40 ecm and tcm. I was also given the key for it though, so I can read it out with HPtuners, but of course I can't view the tune since it says it was locked by another interface. Is there anything I can do with my HPtuners interface to get it back to an unlocked tune, or would I need to use some other tuning setup to do that? I haven't licensed it yet, so I don't know if that makes it possible to write over it (since I can't view the tune anyway). I was able to convince my tech II and GM SPS to flash over it by unlocking it with a second scan tool first, but it does not change the seed/key so it remains locked and HPtuners will not open it. Any ideas or should I junk it or pay someone with EFIlive to unlock it?
03-08-2019
Bill@HPTuners

I would suggest installing an ecm that isn't tunerlocked.
03-08-2019
jamesr

Quote:

Originally Posted by Bill@HPTuners

I would suggest installing an ecm that isn't tunerlocked.

So you're saying that your software will not leave it in an unlocked state even if i try a write entire over it with an unlocked tune after licensing it and the ecm both? I don't actually need the ECM right now, i'm just seeing what's possible in case I ever do.
03-08-2019
Bill@HPTuners

What I'm saying is if the ecm is tunerlocked and you want to tune the vehicle you will need to replace the tunerlocked ecm with one that ISNT TUNERLOCKED.
03-08-2019
jamesr

Well that's not entirely true because it is possible to get it unlocked, but I'll take that as saying HPtuners won't do it whatever I try. Thanks!
03-08-2019
Bill@HPTuners

Quote:

Originally Posted by jamesr

Well that's not entirely true because it is possible to get it unlocked, but I'll take that as saying HPtuners won't do it whatever I try. Thanks!

Correct, tunerlocked ecm's aren't meant to be unlocked by anyone other than the original tuner. Talk to the person who locked it and have them unlock it if thats what they want to do.
03-08-2019
Keith@HPTuners

He states he was given the key, so, he could flash over it with another file.

The tricky thing about E40's is if you try to flash a file that's not compatible with your hardware, you might brick the ECU.
03-12-2019
Montecarlodrag

Even if you have the key doing a write entire with a stock (unlocked) tune will not remove the tunerlock.
The ECU was tunerlocked using Efilive so the only way is to send it to someone with efilive to return it to a factory seed/key combination.
HPTuners can't do it.

Worst case, you find a file compatible with your ECU, write entire (will use from 4 to 6 credits), after that edit the file and use the same key everytime you want to flash that file to the ECU again (the tunerlock will remain). The File that you read from the ECU can't be opened in HPT.
08-29-2022
@kounkustoncars

I think I can help you unlock. Send me an e-mail
08-29-2022
jamesr

Quote:

Originally Posted by @kounkustoncars

I think I can help you unlock. Send me an e-mail

Thanks, but It's been 4 years. I got it figured out and have unlocked quite a few since then!
10-17-2022
DCLTLLC14

Quote:

Originally Posted by jamesr

Thanks, but It's been 4 years. I got it figured out and have unlocked quite a few since then!

Could use your help if possible. Can you email me or message me on here. [email protected]
10-15-2023
99SS#20

Quote:

Originally Posted by jamesr

Thanks, but It's been 4 years. I got it figured out and have unlocked quite a few since then!

Could you message me with how to do this,please.
10-16-2023
jamesr

Quote:

Originally Posted by 99SS#20

Could you message me with how to do this,please.

https://www.customecm.com/tune-file-...tunerlock-info
10-18-2023
TheMechanic

Quote:

Originally Posted by jamesr

https://www.customecm.com/tune-file-...tunerlock-info

I can personally vouch for James and his service. Fast, he answers email quickly, and just an all around good guy. I have his unlock tool and a few others that work great as well as having him unlock a tunerlocked PCM.