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- Sun May 12, 2019 8:43 am
- Forum: Ninebot ES and E-series
- Topic: [UPDATED] Activate a new controller / change serial number (BLE, ST Link)
- Replies: 56
- Views: 250407
Re: HOW TO : Activate a new controller / change serial number
Hello Lothean, Thanks for this info works fine, but after downgrade DVR version, the bottom lights no works anymore with Segway-Ninebot app, even using "T" as fourth character serial number, do you know why happens this ???........my another question is, how I can a backup of actual firmware version...