How to Bypass and Remove Tuner lock from an LS Pcm

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Re: How to Bypass and Remove Tuner lock from an LS Pcm

Postby Gampy » Mon May 17, 2021 5:27 pm

Thomas wrote:I’m using hp tuner

That's your problem!
Feed the beast, the beast gets bigger, DON'T FEED THE BEAST!

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Re: How to Bypass and Remove Tuner lock from an LS Pcm

Postby Tazzi » Mon May 17, 2021 7:40 pm

Gampy wrote:
Thomas wrote:I’m using hp tuner

That's your problem!

:lol: Good Call Gampy haha.

The "this ecu has been locked by another tuner" occurs because HPTuners detects that the seed/key are not the factory combination and that you have not licensed that ecu, thus makes the assumption you are not the original tuner and does not let you view or edit that file.

I have had previous customers indicate they have loaded up a previously license HPT file, gone to write the file to the ECU which causes the "you must license this ecu" message to appear on screen, to which they accept to license the ECU.
They then stop/prevent HPTuners from actually performing the write procedure, close the application and then reopen the program and load in the original ECU file which removed the lock error.

I personally have not done this, I am just passing on the information that was passed to me. Basically you are licensing the ECU without overwriting it, which then allows you access to the original file as you have licensed that vin/serial. I have no clue if this is only possible on specific versions or not, I have not tried.

Another method is just using pcmhammer then changing the key to a factory value and writing back to the ecu which should allow hptuners to open it happily.
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Re: How to Bypass and Remove Tuner lock from an LS Pcm

Postby Gampy » Mon May 17, 2021 8:34 pm

Oh no, I smell that smell, that awful smell, food for the beast ... DON'T FEED THE BEAST!
Feed the beast, the beast gets bigger, DON'T FEED THE BEAST!

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Re: How to Bypass and Remove Tuner lock from an LS Pcm

Postby Thomas » Thu May 20, 2021 1:36 am

He brought the car and just wanted to calibrate the speedo. I ended up paying someone to unlock it. Had a hp tuner custom os in it.

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