Got a newer Jump ES4 from auction. Flashed the dash with the tut and STLink. I then changed the serial number and flashed the batteries with BMS141, BLE107, DRV133. The control board is potted with clear gel, and the B- fuse that causes the headlight/top speed issue was a 0 ohm link. 1. Would be th...

I've bought three batteries on eBay (most are unbranded and perhaps came from rental fleets). All three used tamper resistance T15. Many of the auctions state this. This again is US scooters and US batteries, but again all three came from eBay and I suspect they all came from rental fleets given the...

These are the set I use:
https://www.amazon.com/gp/product/B07GB ... UTF8&psc=1

It's the T15. I had another set that weren't as long and it was really hard to to get a tool deep enough, but these bits are longer and my standard driver has no issue.

Hi, I've had every Ninebot scooter at various times, ES1, ES3, ES2 and ES4 (owned in that order). I can tell you that no amount of adjusting will allow you to overcome the auto-braking sensation. This is hard coded in lower levels of the controllers. My experience has been roughly as follows: ES1 =...

Anyone know the exact size needed for the external battery screws on the rental version es4's? I have two sets of Chinese made torx and Allen head tamper proof t-handles and unless I have a defective set none of them fit the 2 screws holding the external battery to the rail. Thanks. Should be TS15 ...

What do you mean with turbos? He was joking. Per your original question, MPC can help to improve acceleration, and you may find "Alternative Throttle Program" helps as well. Be careful with MPC on ES2s though, it has been known to fry things. You should also be able to get above 25 kph to at least ...

Hi, I bought my es1 about 6 months ago. Today I purchased a 2nd battery as well. I am still not pleased with the speed which is limited to 25kmh per my country's regulations and so I decided to change the firmware using ESDownG. I've successfully created and downloaded a new firmware that should ra...

Hi, I've had every Ninebot scooter at various times, ES1, ES3, ES2 and ES4 (owned in that order). I can tell you that no amount of adjusting will allow you to overcome the auto-braking sensation. This is hard coded in lower levels of the controllers. My experience has been roughly as follows: ES1 = ...

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 an...