Updating d300 firmware
The camera can be configured to assign priority to either the internal EN-EL3e battery or the MB-D10 grip such that the other battery is used only when the primary battery is dead.The D300 can shoot 8 frames per second with the MB-D10 & AA/EN-EL4/EN-EL4a battery installed, otherwise the camera is limited to a 6 frames per second 'shooting' mode.The MB-D10 is also compatible with the D700 but not the D200.On January 15, 2008, Nikon released three additional picture control modes for the D300 which emulate the D2X/D2XS color modes I, II and III.
Or perform a Low-Level format which will reset the card architecture.
Residing in the interface between the camera's software and hardware, it is embedded in the microprocessor chip(s) that control all the device's operations.
Firmware covers both routine processes and enabling functions for higher-level procedure.
However, don't feel you MUST update your equipment's firmware each time a new update is released.
Sometimes a firmware update may add functionality that doesn't apply to equipment you use, such as specific lens models.The MB-D10 allows the D300 to be powered by an additional EN-EL3e battery or AA batteries.