Was this firmware generated from https://ninebot.scooterhacking.org ?

Hello! I've tried to revert BMS from 1.3.3 to 1.2.2 on my ES4 via ES_downG. I created zip file with BMS binaries from this site with following info.txt: dev: ES/SNSC; nam: BMS122; enc: B; typ: BMS; md5: 97f8be8be42f4996bb0f2dac5c50fc55; md5e: ece7da9b0dbe674597063d293e569ea6; ES_downG successfully ...

You're going to need to be a little more precise

Hello
Which firmware update did you apply ?

* When purchasing an ESx, is it mandatory to install and connect with APP? For the first setup, yes * Or if you do not, the ESx works in the same (on / off, indicates speed, driving mode, lights and battery status), but losing some other features? The scooter works the same. You just loose customiz...

Hello
Please send me a PM on Discord

это очень плохо, русская община очень мила!

I'm not sure if its appropriate to post the following but it helped me a lot so I figured I would share. Based on other research I found for changing serials with the ninebot ONE and other models...I was able to get a new control board activated with ALL the features. The chinese clone board I had ...

And the activation only part,how it's done?

This supposedly "activates" the controller. If it's not activated at all, then you'll have to reflash it with an activated bin.

A very detailed guide, thank you so much ;)

EDIT 09/09/2019: added new dashboard flashing method, no telnet, no cmd... and edited links with proper BB code ;)

EDIT 22/09/2019: fixed dead link