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Hypermotard 950 SP 2021 - desmo service can't be reset
Posted: Fri Jul 17, 2026 9:49 pm
by Hypermotard950sp
Hello everybody,
I try to reset the desmo service of my hypermotard 950 SP 2021, but I can't manage to do it.
Annual service and oil change service are fine ( reset works as expected), but demso is not working. Also, when I click on the button, I don't see any light blinking on the elm.
Is it a known issue ?
Thank you
Re: Hypermotard 950 SP 2021 - desmo service can't be reset
Posted: Sat Jul 18, 2026 8:57 am
by jpl250rs
unfortunatly i have no feed back about desmo
you'r the 1st
do you know the ecu manufacturer ?
Re: Hypermotard 950 SP 2021 - desmo service can't be reset
Posted: Fri Jul 24, 2026 4:47 am
by silthi
Qui c’est , peut être que si tu rajoutes 10ans à la date il te demandera le service desmo.
La méthodologie
Tu change la date
Tu coupe la moto 30sec
Tu réinitialise le service
Tu coupe la moto 30sec
Tu rallume et remet la bonne date .
Re: Hypermotard 950 SP 2021 - desmo service can't be reset
Posted: Sat Jul 25, 2026 6:49 pm
by Hypermotard950sp
jpl250rs wrote: Sat Jul 18, 2026 8:57 am
unfortunatly i have no feed back about desmo
you'r the 1st
do you know the ecu manufacturer ?
It is a continental M4C
Re: Hypermotard 950 SP 2021 - desmo service can't be reset
Posted: Sat Jul 25, 2026 10:32 pm
by jpl250rs
can you post the report ?
Re: Hypermotard 950 SP 2021 - desmo service can't be reset
Posted: Sun Jul 26, 2026 12:37 pm
by Hypermotard950sp
Hello,
I managed to do the desmo reset finally, but I don't know which thing solve my issue, because I have done these 2 things at the same time :
- Change the date to 2036, power down for 30s, then do the desmo reset (heard the sound validation from windows).
- Update MelcoDiag from 2.0.4.4 to 2.0.5.2
Thank you to both of you.
Re: Hypermotard 950 SP 2021 - desmo service can't be reset
Posted: Sun Jul 26, 2026 12:47 pm
by jpl250rs
great!