How to downgrade to Shimano motor firmware version 4.3.2 with eTube 3.4.5 software to be able to modify your bike with the eMax
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SHIMANO STEPS for road bikes – improved system integration with updated firmware | GRAN FONDO Cycling Magazine
New Shimano firmware fixes battery indicator and allows tunable eco mode | Ebikes Forum | The #1 Electric Bike Owners Group
How to downgrade to Shimano motor firmware version 4.3.2 with eTube 3.4.5 software to be able to modify your bike with the eMax
![Installing Shimano 12 Speed Di2 Road Lever Firmware Updates with PC Link Device (SM-PCE02) - YouTube Installing Shimano 12 Speed Di2 Road Lever Firmware Updates with PC Link Device (SM-PCE02) - YouTube](https://i.ytimg.com/vi/7k8IVKGBUds/maxresdefault.jpg)