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Q : What is the function of the TF card in the GD880 and what are the precautions for replacing it?
A: The TF card stores control parameters, system operation data and black box data. It is located on the left side of the control unit and can be used to restore parameters for a new control unit.
The TF card can be replaced after the main control unit is powered off. To avoid damaging the TF card, it should be removed before the control unit protective cover is removed.
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