2 - 4 MC9090-G RFID Integrator Guide Supplement
Figure 2-2
Installing the Keypad
4. Perform a cold boot (see Performing a Cold Boot on page 1-9).
Multi Media Card (MMC) / Secure Device (SD) Card
The MMC provides secondary non-volatile storage. The MMC is located under the keypad (see Figure 2-1 on page
2-3).
To insert the MMC/SD card:
1. Press the Power button to suspend the mobile computer.
2. Remove the two keypad screws and slide the keypad down and lift off (see Figure 2-1 on page 2-3).
3. Lift the MMC/SD retaining door.
4. Position the MMC/SD card, with the contacts down, into the MMC/SD holder. The MMC/SD card corner notch
fits into the holder only one way.
5. Snap the retaining door closed.
NOTE SD cards are inter-operable with MMC cards and can also be used in MC9090-G RFID mobile
computers.
CAUTION Do not remove the keypad while the mobile computer is on and do not operate the mobile computer
with the keypad detached. Follow proper ESD precautions to avoid damaging the MMC/SD. Proper
ESD precautions include, but are not limited to, working on an ESD mat and ensuring that the
operator is properly grounded.
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