APT 850C - Assist Level Customization; Error Code Diagnostics; Factory Reset Procedure

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*Speed limit and current limit are restricted by controller and motor.
8.13 Assist levels : This parameter can customize assist levels, options are 3/5/9/UBE,
UBE represent factory default settings.
8.14 Error code ：Display the last 10 times error code.
8.15Factory setting : Press POWER button enter Restore Factory settings item, set YES
will restore all parameter to factory settings.