Technical Update: DM02 (500W) Firmware Optimization

[to7motor@SZ]

Here you can see the issue, with that firmware appeared also that noise seems a frog

Thanks for the quick update, Mr. Stefano.

Our tech team took a look at the video. Since the noise happens even when the bike is completely still, we strongly suspect it's a Torque Sensor zero-point calibration issue. In standby mode, the controller may be picking up unstable torque signals, which makes the PWM send tiny pulses to the motor coils.

Could you please record a short video of the display starting from the moment you turn the bike on? So that we can make sure to send you the right solution.

We recommend putting the bike on its kickstand and making sure no weight or pressure is on the pedals or cranks while the system boots up.

We really want to get this properly sorted for you. Please share with us what you find!

Toseven Supoprt Team

 

[to7motor@SZ]

Torque sensor is showing incorrect value 1.7V. It should be ~0.7V. Did you have the same issue before installing new firmware (2026-05-26)?

Dear Mr. Snajpera,

Thanks for your feedback. That's an interesting observation about the voltage variance.

To help our tech team figure out what's going on and get to the real root cause, could you please send a quick video of your display starting from the very moment you turn it on? That’ll give our engineers the exact data they need to cross-check.

Thanks for sharing all the details. Looking forward to your video!

Toseven Support Team

 

[Atak_Snajpera]

Dear Mr. Snajpera,

Thanks for your feedback. That's an interesting observation about the voltage variance.

To help our tech team figure out what's going on and get to the real root cause, could you please send a quick video of your display starting from the very moment you turn it on? That’ll give our engineers the exact data they need to cross-check.

Thanks for sharing all the details. Looking forward to your video!

Toseven Support Team

Another example why you should stop using AI for communications with your customers. Your AI SLOP agent completely got lost here and didn't figure out that It was just a comment to Stefano's issue. Real human would not make that silly mistake here.

 

[Serpent]

Thanks for the quick update, Mr. Stefano.

Our tech team took a look at the video. Since the noise happens even when the bike is completely still, we strongly suspect it's a Torque Sensor zero-point calibration issue. In standby mode, the controller may be picking up unstable torque signals, which makes the PWM send tiny pulses to the motor coils.

Could you please record a short video of the display starting from the moment you turn the bike on? So that we can make sure to send you the right solution.

We recommend putting the bike on its kickstand and making sure no weight or pressure is on the pedals or cranks while the system boots up.

We really want to get this properly sorted for you. Please share with us what you find!

Toseven Supoprt Team

Here a timelapse from the switching on, you can see the voltage start from 0.7v and raise to 1v in only 3/4 minutes of riding. You can imagine how fast and easy is to raise to 1.7v.

 

[Atak_Snajpera]

What is production date of your motor?