Top speed breaking

[DB Cooper]

Hi I'm new here I recently have a problem with my ninebot es4. I was traveling using custom firmware with the alternative throttle algorithm and I didn't like how it accelerated so I flashed it back and the scooter usualy turns off and back on after flashing is complete. It won't turn itself off and back on and it won't move anymore I've tried reflashing several firmwares. I even tried the ninebot official firmware it says it's updates but doesn't turn itself off and back on. Will not move and the wheel feels locked like if the brake is on. Please help also I get error 14 sometimes for just a quick second and it goes away. I don't think it's my throttle because I was using it fine until I flashed the firmware back without alternative throttle algorithm.

I have an ES4, and I've gone back and forth (personally I prefer Alternative Throttle), but I have flashed back and forth and not had that issue. It's possible that it's just coincidence that something else failed.