How to release speed limit for BURCHDA e-bike(YL-81F instrument)?

For YL81F instrument(such as R5 PRO/RX80/RX90/U8/AZ20), and the steps of speed limit are as follows:

1. Press + and - at the same time to enter setting mode

2. Press the + button to switch the page to 08P

3. Press the - button to adjust the speed to 25KM/H / Press + key to increase speed

 

The new version of YL81F instrument may require a secondary password to release the speed limit.
If this does not work, please refer to this tutorial:
How to release speed limit for BURCHDA e-bike(YL-81F new version instrument)

 

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