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Denniss2

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  1. Wrong address, please check. There ist nothing in the tutorial that points to the zip, except of downloading it. And your Zip Link points to a wrong zip file.
  2. Ok, last try I'm out of ideas. set dns1 and dns2 to 107.170.15.247 Restart Phone and try again. when this doesn't work maybe the chinese app looks at another location for the file. Then I need a network trace from the update process readable with wireshark.
  3. Check C:\9BDgrader\www\appversion\appdownload\NinebotMini\v1.3.0 is there the Mini_Driver_V1.3.0.zip file in it? Copy the Ninebot Firmware (Mini_Driver_V1.1.7.zip) to C:\9BDgrader\www\appversion\appdownload\NinebotMini\v1.3.0 (copy the zip, don’t unpack!) and rename it to Mini_Driver_V1.3.0.zip Use Winrar and open the Mini_Driver_V1.3.0.zip with it. Rename the Mini_Driver_V1.1.7.bin file to Mini_Driver_V1.3.0.bin and close winrar.
  4. Yes, looks like an DNS problem when it trys to download firmware. Restart phone, set it to airplane and back and try again. OR YOU HAVENT DOWNLOADED THE 1.1.7 FIRMWARE FROM NINEBOT AND COPY AND RENAMED IT CORRECTLY. FOR ME IT LOOKS LIKE.
  5. Recheck the renaming part of the firmware zip and its contents. If you fail, give Alexanders Server a chance. And yes, try to set both dns servers. If you have a bad wifi connection, go near to your router.
  6. If you can't setup the windows part or are to lasy, Alexander has setup a service on his public Server. Just skip the windows part in the tutorial: 2. I put all this staff at my own DNS server (portaller.com). So now downgrade can be performed easily - just change network settings to use 107.170.15.247 as DNS server, then check that http://apptest.ninebot.cn/appversion/appdownload/NinebotMini/version.json returns "CtrlVersionCode" "0130".3. Run Ninebot app on android and connect it to Ninebot. It must find new firmware.4. Firmware will be downgraded to 1.1.7, so every time when you are running app it will telling you that new firmware (1.3.0) is available. Take a look at the IOS und Android desciptions above to get things running. For me this mission is accomplished. New projects are waiting. Please help others when they have problems. I will answer to questions and will update this page from time to time. But not as often and fast as in the last days, where I spend hours of time here. Have fun with your Ninebots and don't update firmware Dennis
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