User's Manual

Chapter 9 — Troubleshoot and Maintain the Computer
CN50 Mobile Computer for Windows Embedded Handheld 6.5 User Manual 103
Troubleshoot Operating the Computer
Use this section to troubleshoot problems that may prevent you from
being able to operate the computer.
Problems Operating the Computer
Problem Solution
You cannot type a character on the keypad
or you can only type uppercase or
lowercase letters.
You may have locked a modifier key on the keypad.
Press the necessary key sequence to unlock the key. For
help, see “About the Keypad” on page 12.
You press the Power key and nothing
happens.
• Make sure the backlight is on.
• Make sure you have a charged battery that is
installed correctly. For help, see “Charge the
Battery” on page 8.
• The battery may be discharged. Replace the battery
with a spare charged battery, or charge the battery.
• Reset the CN50. For help, see “Reset the
Computer” on page 105.
You insert a microSD card and cannot
find the SDMMC Disk folder on the
CN50.
• The microSD card may not be installed correctly.
Insert the microSD card as described in Steps 2
through 4 of “Insert a MicroSD Card” on page 16.
• The microSD card may be damaged. Try another
microSD card.
The Battery status LED is on.
• If the battery status LED is a steady green, the
battery is more than 95% charged and computer is
on a charger.
• If the battery status LED is blinking red, then the
battery is low. Replace or charge the battery.
• If the battery status LED is a steady red, the main
battery is on charge.
The computer appears to be locked up
and you cannot enter data.
• Press the Power key to turn off the computer, then
press the power key again to turn it on.
• Cold boot the computer. For help, see “Cold Boot
the Computer” on page 105.
• Try reloading the firmware. For help, see “Update
the System Software” on page 94.
• If the computer does not boot or reset, contact your
Intermec representative for help.