Idea to unlock top speed
Posted: Fri Nov 15, 2019 12:24 am
by Xecutioner
Maybe this is a stupid idea, but there is a slider in the app that lets you limit the speed. Could we decompile the app, change the max, recompile. and send a higher value? Or similarly maybe it would work to sniff the bluetooth traffic, determine the values being sent like a memory trainer works, and replay the commands with an altered max speed?
Re: Idea to unlock top speed
Posted: Tue Nov 19, 2019 6:06 pm
by usernameunavailable
The only idea that is stupid is the one which goes unasked.
There are multiple speed limit values on these scoots (this is not a complete list):
1> Serial Number (to limit by region)
2> Config Register 0x73/0x74 (this would be used for example, by a rental company in a city -- ex: city allows only 15Kmh).
3> The limit you see in the app (this likely changes config register 0x74).
The lowest valued numbers (as above) would take priority... so, for example, if we were to as you said, decompile the app and change the app's speed limit value to 5000Kmh, we would still be limited to the maximum value defined by the Serial Number, or one set by the config register.
CFW will likely be the fix for this.