Lenovo IdeaPad U455 driver and firmware
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Lenovo IdeaPad U455 User Guide V1.0 - Page 2
... common to most models. Some features may not be available on your computer and/or your computer may include features that are not described in this user guide.
First Edition (December 2009) © Copyright Lenovo 2009. LENOVO products, data, computer software, and services have been developed exclusively at private expense and are sold to governmental entities as commercial...
Lenovo IdeaPad U455 User Guide V1.0 - Page 14
.... For a list of service and support phone numbers, go to http://consumersupport.lenovo.com. Lenovo provides documentation with instructions when it is appropriate for customers to install options or replace units (CRUs). Closely follow all instructions when installing or replacing parts. Disconnect the attached power cords, battery pack, and all the cables before you open the device covers, unless...
Lenovo IdeaPad U455 User Guide V1.0 - Page 44
... how to set the password, see the help to the right of the screen in BIOS setup utility. Note: To enter BIOS setup utility, press F2 when the Lenovo logo appears on the screen while the computer is starting up.
„ Fingerprint reader
With the fingerprint reader, in addition to registering fingerprint information and using it as a password for Windows operating system...
Lenovo IdeaPad U455 User Guide V1.0 - Page 48
...) Enabling wireless connection
To enable wireless communications, do the following:
1 Slide the integrated wireless device switch to . 2 Press Fn + F5 to make configuration.
Hardware connection
Access point *
Wi-Fi/WiMax network
* Not supplied
Software configuration Consult your Internet Service Provider (ISP) and search Windows Help and Support Center for details on how to configure your computer...
Lenovo IdeaPad U455 User Guide V1.0 - Page 53
...drive) for easy restore when required. You can run Lenovo OneKey Recovery under the Windows operating system, and the OneKey Rescue system without starting the Windows operating system.
Attention: In order to utilize the features of the OneKey Rescue system, your hard disk...and is the reason the available disk space is less than it claims. The exact available hard disk space depends on the file size...
Lenovo IdeaPad U455 User Guide V1.0 - Page 57
... I contact the customer support center? See "Appendix A. Getting help and service" on page 64 of this guide.
Where can I find warranty information? For the warranty applicable to your computer, including the warranty period and type of warranty service, see "Appendix C. Lenovo limited warranty" on page 82.
How can I install the device drivers? A compatible device driver is a requirement to ensure...
Lenovo IdeaPad U455 User Guide V1.0 - Page 59
.... - The AC adapter is connected to the computer and the power cord is plugged into a working electrical outlet. - The computer power is on. (Press the power button again for confirmation.) - The memory is installed correctly.
• If these items are properly set, and the screen remains blank, have the computer serviced.
• Restore backed-up files to your Windows environment or the...
Lenovo IdeaPad U455 User Guide V1.0 - Page 60
...Make sure switchable graphics feature is enabled in BIOS setup utility.
• Make sure the driver for switchable graphics is properly installed.
• Make sure you are under Windows operating system when sliding the GPU switch.
...If this happens when your computer is connected with an external display and the external display is active, switch the display device back to the LCD screen on your...
Lenovo IdeaPad U455 User Guide V1.0 - Page 63
... sure that:
distorted.
- The display device driver is installed correctly.
- The screen resolution and color quality are
correctly set.
- The monitor type is correct.
Incorrect characters appear • Did you install the operating system or application
on the screen.
program correctly? If they are installed and
configured correctly, have the computer serviced.
Sound problems
No sound...
Lenovo IdeaPad U455 User Guide V1.0 - Page 68
... 6. Upgrading and replacing devices
3 Unlock the manual battery latch . Holding the spring-loaded battery
latch in the unlocked position , remove the battery pack in the direction shown by the arrow .
b
c
a
4 Install a fully charged battery. 5 Slide the manual battery latch to the locked position. 6 Turn the computer over again. Connect the AC adapter and the cables
to the computer again...
Lenovo IdeaPad U455 User Guide V1.0 - Page 69
... devices
Replacing the hard disk drive
You can increase the storage capacity of your computer by replacing the hard disk drive with one of greater capacity. You can purchase a new hard disk drive from your reseller or Lenovo marketing representative.
Notes: • Replace the hard disk drive only if you upgrade it or have it repaired. The
connectors and bay of the hard disk drive...
Lenovo IdeaPad U455 User Guide V1.0 - Page 73
...Upgrading and replacing devices
Replacing memory
You can increase the amount of memory in your computer by installing a double data rate (DDR2) small outline dual inline memory module (SDRAM)-available as an option-in the memory slot of your computer. SDRAMs are available in various capacities. Note: Use only the memory types supported by your computer. If you incorrectly
install optional memory...
Lenovo IdeaPad U455 User Guide V1.0 - Page 75
Chapter 6. Upgrading and replacing devices
6 If two SDRAMs are already installed in the memory slot, remove one
of them to make room for the new one by pressing out on the latches on both edges of the socket at ...
Lenovo IdeaPad U455 User Guide V1.0 - Page 76
Chapter 6. Upgrading and replacing devices
9 Tighten the screws. 0 Reinstall the battery. A Turn the computer over, and reconnect the AC adapter and the
cables to the computer. To make sure that the SDRAM is installed correctly, do as follows:
1 Turn the computer on. 2 Hold F2 during startup. The BIOS setup utility screen opens. The
System Memory item shows the total amount of memory installed in...
Lenovo IdeaPad U455 User Guide V1.0 - Page 78
... software source for Windows product updates. They are available by means of a Web download (connection charges may apply) or from a disc. For more specific information and links, go to the Microsoft Web site at http://www.microsoft.com. Lenovo offers Up and Running technical assistance with installation of, or questions related to, Service Packs for your Lenovo-preinstalled Microsoft Windows...
Lenovo IdeaPad U455 User Guide V1.0 - Page 80
... use of parts not manufactured for or by Lenovo or non
warranted parts • Identification of software problem sources • Configuration of BIOS as part of an installation or upgrade • Changes, modifications, or upgrades to device drivers • Installation and maintenance of network operating systems (NOS) • Installation and maintenance of application programs To determine if...
Lenovo IdeaPad U455 User Guide V1.0 - Page 81
... ensure that you have downloaded the most current drivers and system updates, and recorded information before you call. When calling for technical assistance, please have the following information available: • Machine Type and Model • Serial number of your computer and your proof of purchase • Description of the problem • Hardware and software configuration information for...
Lenovo IdeaPad U455 User Guide V1.0 - Page 92
... or software changes, driver updates, minor issues you have experienced and how you resolved them. • If you ever need to run a recovery operation on your computer by OneKey Rescue system, see "Chapter 4. OneKey Rescue system" on page 39. • If required, you can find your country's customer support center at the following Web address: http://consumersupport.lenovo...
Lenovo IdeaPad U455 User Guide V1.0 - Page 97
...
„ What your service provider will do to correct problems
When you contact a Service Provider, you must follow the problem determination and resolution procedures specified.
Your Service Provider will attempt to diagnose and resolve your problem over the telephone, e-mail or through remote assistance. Your Service Provider may direct you to download and install designated software updates.
83
Lenovo IdeaPad U455 User Guide V1.0 - Page 98
Appendix C. Lenovo limited warranty
Some problems can be resolved with a replacement part that you can install yourself called a "Customer Replaceable Unit" or "CRU." If so, your Service Provider will ship the CRU to you to install.
If your problem cannot be resolved over the telephone or remotely, through your application of software updates or the installation of a CRU by...