How to deal with YIKONG YK4083 RC car servo can not control the steering?

[Howto Play]

Check whether the power supply voltage of YIKONG YK4083 servo is normal, if the voltage is insufficient, replace the battery with sufficient power or check the charging circuit.
Check whether the servo gears are worn or stuck with foreign objects, clean up the foreign objects, and replace the gears if they are badly worn.
Adjust the travel and neutral point setting of the servo on the remote control to ensure that the servo works in the normal range.

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