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The firmware is based on 1.18. Some people find doing the motor tuning helps, in my experience (mine and everyone I have flashed) it makes the motor perform worse.
One thing that can cause the scooter to lock up or behave weird is battery issues. Battery imbalance or just low. Some people getting the knock off batteries will have the imbalance issue because one pack discharges differently. You end up with one dead pack and one good pack and it isn't enough to power it correctly.
I, and several other people who I dive with who have Blacktips, have had this happen too. Just try again and the scooter starts up again. Haven't had it disabled to the point of needing to pull batteries to reset it.For other people with the motor humming / stalling issue - Does your scooter completely stop working or are you able to re-engage the motor after letting off the trigger?
I have noticed that cruise turns off when doing a barrel roll.. probably trigger somehow gets pushed or so.. tried this repeatedly 4 or 5 times.. as soon as handle is upside down it disengages.I, and several other people who I dive with who have Blacktips, have had this happen too. Just try again and the scooter starts up again. Haven't had it disabled to the point of needing to pull batteries to reset it.
Just a thought re cruise-control, potentially a safety issue? Would it make sense to have a timer count down cruise, so that you have to tap the button once every minute or two to keep it on?