Use APKPure App
Get ESdownG old version APK for Android
App to flash ES scooters.
App to send firmware to ES Scooter over bluetooth.
The app is free and it comes without any warranty.
all flashable files belong to their respective owners,
This app is compatible with the ES Scooter.
You can create a zip firmware here:
https://ninebot.scooterhacking.org/
If you want you can check out my github
https://github.com/CamiAlfa