Thursday, April 14, 2016

Lenovo ThinkPad Helix – How to reset the laptop – How to test the adapter – How to check the battery pack – How to replace the Backup battery – Laptop repair and service

Category: Laptop repair and Service 

Contents of this article 

  • How to reste the laptop seetings 
  • How to check the battery pack
  • How to check the adapter 

Lenovo ThinkPad Helix

Resetting your tablet to the factory default settings
If you want to recycle your tablet or just start over, you can reset your tablet to the factory default settings. Resetting the tablet will reinstall the operating system, reinstall all the programs that came with your tablet, and reset all the settings to the factory default settings.
Attention: If you reset the tablet to the factory default settings, all your personal files and settings will be deleted. To avoid data loss, make a backup copy of all the data that you want to keep.
To reset your tablet to the factory default settings, do the following:
1. Swipe in from the right edge of the screen to display the charms.
2. Tap Settings > Change PC settings > Update and recovery > Recovery.
3. In the Remove everything and reinstall Windows section, tap Get started. Then tap Next to confirm the operation.
4. Depending on your needs, do one of the following:
To perform a quick format, tap Just remove my files to start the process. The process will take several minutes.
To perform a complete format, tap Fully clean the drive to start the process. The process will take several hours.
5. Follow the instructions on the screen to reset your tablet to the factory default settings
Power system checkout
To verify a symptom, do the following:
1. Turn off the tablet.
2. Connect the ac power adapter.
3. Turn on the tablet. If the tablet can be turned on, it means that either the battery or the ac power adapter is functional.
4. Insert a straightened paper clip into the emergency reset hole to reset the tablet. If the tablet is still powered on, it means that the ac power adapter is functional.
5. Turn off the tablet.
6. Disconnect the ac power adapter and turn on the tablet. If the tablet can be turned on, it means that the battery is functional.
If you suspect a power problem, see the appropriate one of the following power supply checkouts:
“Checking the built-in battery and operational charging”
“Checking the coin-cell battery”
“Checking the ac power adapter”
Checking the built-in battery and operational charging
This tablet supports only batteries specially designed for this specific system and manufactured by Lenovo or an authorized builder. The system does not support unauthorized batteries or batteries designed for other systems. If an unauthorized battery or a battery designed for another systems is installed, the system will not charge.
To check whether the battery charges properly during operation, do the following:
1. Ensure that the tablet failure is not caused by exhausted battery power.
2. Reset the tablet by inserting a straightened paper clip into the emergency reset hole. Then press the power button. If the tablet cannot be turned on, continue with the next step.
3. Clear Complementary Metal Oxide Semiconductor (CMOS) by inserting a straightened paper clip into the emergency reset hole and tapping the Windows Start-screen control at the same time.
4. Press the power button. If the tablet cannot be turned on, continue with the next step.
5. Connect the ac power adapter and press the power button.
If the tablet is turned on, disconnect the ac power adapter from the tablet. If the tablet turns off, it means that the built-in battery fails.
If the tablet cannot be turned on, replace the built-in battery with another one. If the tablet can start up with the new battery installed, it means that the original battery fails.
Checking the coin-cell battery
To check the coin-cell battery, do the following:
1. Disable the internal battery pack.
2. Remove the coin-cell battery.
3. Measure the voltage of the coin-cell battery. See the following illustration.
If the voltage is correct, replace the system board.
If the voltage is not correct, replace the coin-cell battery.
If the coin-cell battery discharges quickly after replacement, replace the system board.
Checking the ac power adapter
When you use the ac power adapter to charge the tablet but no power is charged, see the instructions in this topic to check the ac power adapter.
Note: Noise from the ac power adapter does not always indicate a defect.
To check the ac power adapter, do the following:
1. Disconnect the ac power adapter from the tablet.
2. Measure the output voltage at the plug of the ac power adapter. Refer to the following illustration:
3. If the voltage is not correct, replace the ac power adapter.
4. If the voltage is acceptable, replace the system board.
Restoring the factory contents by using the Recovery Disc Set
Depending on the model, the number of recovery discs included in the Recovery Disc Set differs. The Recovery Disc Set might consist of the user instructions and the following DVDs to restore the tablet to the original factory configuration.
Operating System Recovery Disc (one disc): This disc restores the Microsoft Windows operating system. Use this disc to start the recovery process.
Applications and Drivers Recovery Disc (one or more discs): This disc restores the preinstalled applications and drivers on the tablet. Supplemental Recovery Disc: This disc contains additional content, such as updates to the software that was preinstalled on the tablet. Not all recovery disc sets come with a Supplemental Recovery Disc.
Notes:
During the recovery process, all data on the main storage 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.
Recovery can take one to two hours to complete. The length of time depends on the method you use. If you use recovery discs, the recovery process will take about two hours.
To restore the tablet to the original factory configuration using the Recovery Disc Set, do the following:
1. Connect the tablet to an external CD/DVD drive. Use the external CD/DVD drive to read the recovery discs.
2. Restart the tablet. When the logo screen is displayed, tap To interrupt normal startup, press Enter or tap here on the screen.
3. Tap F12 on the screen and follow the instructions to start the tablet from the CD/DVD drive.
4. Insert the Applications and Drivers Recovery Disc when prompted. Then follow the instructions on the screen to recover applications and drivers.
5. If you have a Supplemental Recovery Disc, insert it when prompted and tap Yes. If you do not have a Supplemental Recovery Disc, tap No.
6. When all of the data has been copied from the last disc in the set and has been processed, remove the disc and restart the tablet