FAFREES FF20 Polar Manuel D'instructions page 15

5.7 Error code display
If there is a fault occurs in the electronic system of the electric bicycle, the display will
automatically show an error code, see Schedule 1 and Schedule 2 for a detailed definition
of the error code.
Figure 5-6 Error Code Display
When the error code appears on the display, please troubleshoot the problem in time, the
electric bicycle will not be able to ride normally after the problem occurs.
6. Personalized parameter settings
Each setting needs to be done with the bicycle stationary.
The personalized parameter setting procedure is as follows:
When the display is ON and the speed shows 0,
(1) Press and hold plus and minus button simultaneously for more than 2 seconds to enter
the personalized parameter setting interface.
(2) Press plus / minus button to toggle between the personalized parameter setting
interface, and press i button to enter the parameter changing state.
(3) Press plus/ minus button to select the parameter, long pres plus button for addition
operation, long press minus button for subtraction operation.
(4) Press i button to save the parameter settings and return to the personalized parameter
setting interface.
(5) Long press i button to save the parameter settings and exit the personalized parameter
setting interface.
The following options are available on the personalized parameter setting interface:
6.1 Backlight luminance setting
01P is the backlight luminance setting. Parameters 01, 02 and 03 are available, which
represent the backlight luminance, 01 for the minimum luminance, 02 for the standard
luminance and 03 for the maximum luminance.
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