LENOVO THINKPAD X1 CARBON – How to Check the Charger – Factory reset - How to check the Backup battery – How to remove passwords - Executing Diagnostic program - Laptop repair and service

Category: Laptop Repair and Service 

Contents of this article 

• Activating Diagnostic Program 
• Charger Testing 
• Restoring the Lap to factory default 

LENOVO THINKPAD X1 CARBON 

UEFI diagnostic program
A UEFI diagnostic program is pre installed on the computer. It enables you to test memory modules and internal storage devices, view system information, and check and recover bad sectors on internal storage devices.
To run the UEFI diagnostic program, do the following:
1. Turn on the computer.,
2. When the Think Pad logo is displayed, repeatedly press and release the F10 key. The main screen of the UEFI diagnostic program is displayed.
3. Follow the instructions on the screen to use the diagnostic program

The options on the main screen are as follows

Tests	Tools
Quick Memory Test	System Information
Quick Storage Device Test	Recover Bad Sectors Tool
Exit Application

Bootable diagnostic programs

If the computer you are servicing is not installed with the UEFI diagnostic program, you can download a bootable diagnostic program from the Lenovo Support Website. The bootable diagnostic programs enable you to test computer memory and internal storage devices, view system information, and check and recover the internal storage devices. To use the bootable diagnostic programs, you can create a bootable diagnostic
medium on a USB device or CD.
To create a bootable diagnostic medium, do the following

1. Go to Lenovo web
2. Click Lenovo Bootable Diagnostics.
3. Follow the instructions on the Web site to create a bootable diagnostic medium on a USB device or CD.
To use the diagnostic medium you have created, do one of the following:
# If you have created the bootable diagnostic medium on a USB device, do the following:
1. Attach the USB device to the computer.
2. Turn on the computer.
3. When the ThinkPad logo is displayed, repeatedly press and release the F12 key. When the Boot Menu window opens, release the F12 key.
4. Use the arrow keys to select USB HDD and then press Enter. The diagnostic program will be launched automatically.
5. Follow the instructions on the screen to use the diagnostic program.
# If you have created the bootable diagnostic medium on a CD, do the following:
1. Turn on the computer.

2. Insert the CD into the optical drive.
3. Restart the computer.
4. When the ThinkPad logo is displayed, repeatedly press and release the F12 key. When the Boot Menu window opens, release the F12 key.
5. Use the arrow keys to selectATAPICDx (x: 0, 1, ...) and then press Enter. The diagnostic program will be launched automatically.
6. Follow the instructions on the screen to use the diagnostic program.

Power system checkout
To verify a if a battery pack and an an power adapter is functional, do the following:
1. Turn off the computer.
2. Connect the ac power adapter.
3. Turn on the computer. If the computer can be turned on, it means that either the battery pack or the ac power adapter is functional.
4. Insert a straightened paper clip into the emergency reset hole to reset the computer. If the computer is still powered on, it means that the ac power adapter is functional.
5. Turn off the computer.
6. Disconnect the ac adapter and turn on the computer. If the computer can be turned on, it means the battery pack is functional

Checking the ac power adapter
You are here because the computer fails only when the ac power adapter is used.
# If the power-on indicator does not turn on, check the power cord of the ac power adapter for correct continuity and installation.

To check the ac power adapter, do the following:
1. Unplug the ac power adapter cable from the computer.
2. Measure the output voltage at the plug of the ac power adapter cable. See the following illustration:

Note: Output voltage of pin 2 of the ac power adapter might differ from the one you are servicing.
3. If the voltage is not correct, replace the ac power adapter.
4. If the voltage is acceptable, replace the system board.
Note: Noise from the ac power adapter does not always indicate a defect.

Checking operational charging
To check whether the battery charges properly during operation, do the following:
Note: Before you begin, install a discharged battery pack or a battery pack that has less than 50% of the total power remaining in the computer.
1. If the battery status indicator or icon does not turn on, remove the battery pack and let it return to room temperature.
2. Reinstall the battery pack.
3. If the indicator still does not turn on, replace the battery pack.
4. If the indicator still does not turn on, replace the system board.

Checking the battery pack
# For  7: Open the Power Manager program and click the Battery tab.
# For  8: Open the Lenovo Support program and click Battery Health, or open the Lenovo
Settings program and click Power.

Checking the backup battery
To check the backup battery, do the following:
1. Disable the built-in battery.

2. Remove the backup battery.

3. Measure the voltage of the backup battery. See the following illustration.

# If the voltage is correct, replace the system board.
# If the voltage is not correct, replace the backup battery.
# If the backup battery discharges quickly after replacement, replace the system board.

Restoring the factory contents by using Recovery Disc Set
When the main storage drive is replaced because of a failure, no product recovery program is on the new drive. In this case, the customer must use the Recovery Disc Set to recover the computer. Order the Recovery Disc Set and the drive at the same time so that the customer can restore the computer to the factory default settings by using the Recovery DiscSet after the new drive is installed.

Depending on the model,the number of recovery discs included in the Recovery DiscSet differs. To restore the factory contents by using the product Recovery Disc Set, do the following:
Notes:
# During the recovery process, all data on the drive will be deleted. If possible, copy any important data
or personal files that you want to keep onto removable media or a network drive before you start the recovery process.
# The recovery process takes one to two hours to complete. The length of time depends on the method you use. If you use product Recovery Disc Set, the recovery process takes about two hours.
1. Connect an external CD/DVD drive.
2. Make the CD/DVD drive the first startup device in the startup sequence using the following procedure:
a. Open the ThinkPad Setup program and select Startup > Boot.
b. Select the CD/DVD drive as the 1st Boot Device.
3. Insert the bootable recovery disc into the CD/DVD drive.
4. Start the computer from the external CD/DVD drive.
5. When promoted, select your language and click Next.
6. Read the license and accept the terms and conditions. Then follow the instructions on the screen.
7. If the Recovery Disc Set contains Supplemental Recovery Disc,insert it when prompted and click Yes.
Note: Not all Recovery Disc Sets come with a Supplemental Recovery Disc. If there is a Supplemental Recovery Disc, it will be clearly marked as such.
8. When all of the data has been copied from the last disc in the set and has been processed, remove the external CD/DVD drive and restart the computer. Follow the instructions on the screen to finish the recovery.
Note: The rest of the recovery process is fully automated and no action from you is required. The computer will restart into the Microsoft Windows desktop several times and you might experience periods when no activity is apparent on the screen for several minutes at a time. This is normal.

9. When the recovery process completes, the Welcome to Microsoft Windows screen is displayed. Follow the instructions on the screen to complete the Windows setup.
10. After you have completed the Windows setup, you might want to restore the original startup sequence. Start the ThinkPad Setup program and then press F9 to restore the default settings. Press F10 to save changes and exit the ThinkPad Setup program.
Note: After restoring a drive to the factory default settings, you might need to reinstall some device drivers.

Hard disk password
There are two kinds of hard disk passwords:
• User hard disk password-for the user
• Master hard disk password-for the system administrator,who canuse it to get access to the hard disk even if the user has changed the user hard disk password
Note: There are two modes for the hard disk password: User only and Master + User. The Master + User mode requires two hard disk passwords; the system administrator enters both in the same operation. The system administrator then provides the user hard disk password to the system user.

Supervisor password
A supervisor password protects the system information stored in the ThinkPad Setup. The user must enter the supervisor password in order to get access to the Think Pad Setup and change the system configuration.
How to remove the power-on password
To remove a power-on password, dothe following:
If no supervisor password has been set,do the following to remove the power-on password:
1. Turn off the computer.
2. Remove the battery pack.

3. Remove the backup battery.

4. Reinstall the backup battery.
5. Reinstall the battery pack.

6. Turn on the computer and wait until the POS Tends. After the POS Tends, the password prompt does not appear. The power-on password has been removed. If a supervisor password has been set and is known to the service technician, do the following to remove
the power-on password:
1. Turn on the computer.

2. When the ThinkPad logo comes up, immediately press F1.
3. Type the supervisor password to enter the ThinkPad Setup program.
4. Select Security.
5. Select Password.
6. Select Power-On Password.
7. Type the current supervisor password in the Enter Current Password field. then leave the Enter
New Password field blank, and press Enter twice.
8. In the Changes have been saved window, press Enter.
9. Press F10 to save changes and exit the ThinkPad Setup program.

How to remove the hard disk password
To remove a user hard disk password that has been forgotten, when the supervisor password and master hard disk password are known, do the following:
1. Turn on the computer.
2. When the ThinkPad logo comes up, immediately press F1 to enter the ThinkPad Setup program. When the power-on password icon is displayed on the screen, enter either the power-on password or the supervisor password.
3. When the user hard disk password icon is displayed on the screen, press F1. The master hard disk password icon is displayed.
4. Enter the master hard disk password to enter the ThinkPad Setup program.
5. Select Security.
6. Select Password.
7. Select Hard-disk x password, where x is the letter of the hard disk drive. A pop-up window opens.
8. Select Master hard disk password.
9. Type the current master hard disk password in the Enter Current Password field. Then leave the Enter New Password field blank, and press Enter twice.
10. Press F10.
11. Press F10 to save changes and exit the ThinkPad Setup program. The user hard disk password and the master hard disk password have been removed.