Hi, I have a 2021 Giant Fathom E +2 29er and the Giant SyncDrive Sport, 70Nm motor has been diagnosed as dead (probably PCB board). The bike also has the Giant RideControl One ANT+. I have the option to purchase a used Giant SyncDrive Sport, 70Nm, speed sensor and Giant Ride Control Ergo 2...
Try removing the battery from the bike and hold the power button for e.g. 15 seconds and try again. Also I had this problem and I had to time the connection with the App and click connect as soon as the lights blink. It took me a good few attempts but it eventually held the connection.
Hi All, John is the name and I come from Cork in Southern Ireland. I have been mountain biking for about 6 years and I live very close to the Nagle mountains and about 20 minutes from the Ballyhoura trails .Ballyhoura - Coillte