How to downgrade your Ninebot / Xiaomi Nine 9 / Segway Mini / Mini Pro from 1.2.8 to 1.1.7 Firmware
Hey Ninebot, Xiaomi, Segway Mini / Mini Pro users,
here is the downgrade pack for your device (Xiaomi, Ninebot, Segway Mini / Mini Pro) with an documentation how to do it. It will downgrade your device from firmware version 1.2.8 back to 1.1.7.
YOU DO THIS AT YOUR OWN RISK, I'M NOT RESPONSIBLE FOR BRICKED DEVICES OR THINGS THAT HAPPEN TO YOU OR YOUR DEVICES BECAUSE OF THIS DOWNGRADE!
It looks like Ninebot has changed something in the App. You need the Ninebot App < 3.6. For And
"Dump Editor Ninebot v2.0.0.0 " has all the firmware embedded in it. You just select the version you want (I suggest to try 1.1.9) and MRN76's program did the rest. As I reported in the "only for the brave" thread the precise instructions I followed were those at MRN76.ru, specifically:
http://mrn76.ru/index.php/programming
which links in turn to:
https://yadi.sk/d/HDT0E2UX3G8XYc
https://yadi.sk/d/C38vGNAI3LMqKq