Exceloin speedo issue

[fido-dido]

Went racing on Wednesday but speedo packed up as soon as i got there.

It's got a symptom like the old brushed motors used to get.

Press trigger... Nothing. Give wheels a little spin with the throttle on it works. Got a sticky brush type fault, but it's brushless.

I have tried

New sensor cable
Setting it up to transmitter, for/rev/neutral
Updated firmware.

It's quite a weird fault as it works if the wheels are given some help so hopefully someone can advise if there is anything I can try.

The 6.5 system is about 18 months old now but only been used for about 20 meetings so I would say it's not had much use.

Weird.....