Ninebot One A1/S2 is not founded, because uses another Service UUID (FEE7) and characteristics:

• FEC7 (CBCharacteristicProperties.Write)
• FEC8 (CBCharacteristicProperties.Indicate)
• FEC9 (CBCharacteristicProperties.Read)

This is no problem, but no getted headers (SN, etc.).

May be have choice get all firmware data for debug?