Toshiba portege m400 Manual De Usuario

User’s Manual

9-15

Troubleshooting

USB device

Refer also to your USB device’s documentation.

Memory expansion

Refer also to Chapter 8, 

, for information on installing 

memory modules.

The fingerprint cannot 
be read due to injuries 
to the finger.

Try the recognition process again using another 
enrolled finger.
If fingerprints from all the enrolled fingers cannot 
be read, please logon by using the keyboard to 
input the password for the time being.
If problems persist, contact your dealer.

USB device does not 
work

Check for a firm cable connection between the 
USB ports on the computer and the USB device.

Make sure the USB device drivers are properly 
installed. Refer to your Windows Vista

TM

 

documentation for information on checking the 
drivers.

If you are using an operating system that does 
not support USB, you are still able to use a USB 
mouse and/or USB keyboard by setting the USB 
KB/Mouse Emulation option within the 
TOSHIBA HW Setup utility to Enabled.
If problems persist, contact your dealer.

Beep sounds.

(Two beeps, a dash 
and a dot, for a 
defective memory 
module in slot A. 

Three beeps, a dash 
and two dots for slot B.

When both beeps 
sound, both memories 
in slot A and B are 
defective.)

Make sure the memory module installed in the 
memory slot is compatible with the computer.

If an incompatible module has been installed, 
follow the steps below.

1. Turn off the computer.

2. Disconnect the AC adaptor and all peripheral 

devices.

3. Remove the battery pack.

4. Remove the memory module.

5. Install the battery and/or connect the AC 

adaptor.

6. Turn on the power.

If problems persist, contact your dealer.