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How to trigger Secondary Bootloader

Posted: Mon Feb 16, 2026 1:09 am
by JTevniteMR
I have fitted a 2021 Mustang Mach-e powertrain to my1965 Ford Falcon . I amusing v2.3.70 with a valid Extended License and a OBD Link/ Kvaser interface.
I am unable to write to the GWM (Gateway Module A) at address 716-01-01 The "Write" button is missing and the software does not trigger a Secondary Bootloader (SBL) download, even when connected to the internet.
I need to change716-01-01 (Airbag /RCM Presence) to "Not Fitted" to clear network faults.
Can anyone please provide a Test Build or specific SBL files to unlock the writing for this GWM strategy?
Thankyou for your help with this build!

Re: How to trigger Secondary Bootloader

Posted: Mon Feb 16, 2026 4:35 am
by Don Ridley
If you have a paid subscription, contact the Forscan team. The forum is not the best place to get their attention. See the contact info on the website. You need to read some of the topics to get their email.

Re: How to trigger Secondary Bootloader

Posted: Mon Feb 16, 2026 6:57 pm
by JTevniteMR
Thanks for the information . I will try your suggestion