so i've been tinkering with a bunch of scooters lately and i came across a ninebot es1 all original on craigslist. when i finally got it all back together (it came completely dissassembled), i could'nt get it to go over 16mph no matter what flash i used. i know the board and motherboard are original since it updates from the app correctly and i am able to flash firmwares, but it seems like it's physically limited to 16mph on the bench test. am i missing something?
it was an es1 that i added an external battery to. when i installed the battery, i had to update the battery firmware and the mainboard firmware to work.