An SD card is a precision device. Always observe the following precautions when you handle SD cards:
Always switch the machine off before you insert an SD card. Never insert the SD card into the slot with the power on.
Do not remove the SD card from the service slot after the power has been switched on.
Never switch the machine off while the firmware is downloading from the SD card.
Keep SD cards in a safe location where they are not exposed to high temperature, high humidity, or exposure to direct sunlight.
Always handle SD cards with care. Do not bend or scratch them. Do not let the SD card get exposed to shock or vibration.
Make sure that the write protection of an SD card is unlocked when you download an application to it. If not, downloading fails and a download error (e.g. Error Code 44) occurs during a firmware upgrade.
Keep the following points in mind when you use the firmware update software:
"Upload" means to send data from the machine to the SD card. "Download" means to send data from the SD card to the machine.
To select an item on the LCD, touch the appropriate button on the soft touch-screen of the LCD.
Disconnect the Ethernet interface cable, IEEE1284 interface cable and remove the Wireless LAN interface board before you start the firmware update procedure. Make sure that the machine is disconnected from the network to prevent a print job for arriving while the firmware update is in progress.