Thursday, March 31, 2016

Lenovo thinkpad 8 – How to test the AC adapter – How to reset the tablet to factory default – How to make recovery media – How to Disassemble thinkpad 8 – Tablets repair and service

Category: Tablet Repair and Service 

Contents of this article 

  • How to Reset the tablet
  • How to Check the AC Adapter voltage
  • How to remove the battery 

Lenovo thinkpad 8

Checking the ac power adapter
When you use the ac adapter to charge the tablet but no power is charged, see the instructions in this topic to check the ac adapter.
To check the ac adapter, do the following:
1. Disconnect the power cord from the tablet.
2. Measure the output voltage at the plug of the power cord. Refer to the following illustration:
Note: If Pin 2 is connected to the ground, it can not charge.
3. If the voltage is not correct, replace the power cord.
4. If the voltage is acceptable, replace the system board.
Refreshing Lenovo tablet
If your tablet does not perform well and the problem might be caused by a recently installed program, you can refresh your tablet without losing your personal files or changing your settings.
Attention: If you refresh your tablet, the programs that came with your tablet and the programs that you installed from Windows Store will be reinstalled, but all other programs will be removed.
To refresh your tablet, do the following:
1. Move your pointer to the top-right or bottom-right corner of the screen to bring up the charms. Tap Settings > Change PC settings > Update and recovery >  Recovery.
2. In the Refresh your PC without affecting your files section, tap Get started.
3. Follow the instructions on the screen to refresh your tablet.
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. Move your pointer to the top-right or bottom-right corner of the screen to bring up the charms. Tap Settings > Change PC settings > Update and recovery > Recovery.
2. In the Remove everything and reinstall Windows section, tap Get started. Then tap Next to confirm the operation.
3. 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.
Creating and using recovery media
You can create recovery media as backups for the Windows recovery environment and the Windows recovery image. If you cannot start the tablet, you can use recovery media to troubleshoot and fix the problems on your tablet.
It is recommended that you create recovery media as early as possible. Once you create recovery media, keep them in a safe place and do not use them to store other data.
Creating recovery media
To create recovery media, you need a USB drive with at least 16 GB of storage. The required USB capacity depends on the size of the recovery image.
Attention: Creating recovery media will delete anything stored on the USB drive. To avoid data loss, make a backup copy of all the data that you want to keep.
To create recovery media, do the following:
Note: Ensure that your tablet is connected to ac power.
1. Move your pointer to the top-right or bottom-right corner of the screen to bring up the charms, and tap Search.
2. Typerecovery in the Search field and tap the Search button. Then tap Create a recovery drive.
3. Tap Yes in the User Account Control window to allow the Recovery Media Creator program to start.
4. Ensure that you select the Copy the recovery partition from the PC to the recovery drive. option. Then tap Next.
Important: If you clear the Copy the recovery partition from the PC to the recovery drive. option, you will create recovery media without the recovery partition content. You still can start the tablet from the recovery media, but you might be unable to recover your tablet if the recovery partition on your tablet is damaged.
5. Connect a proper USB drive then tap Next.
6. Tap Create in the Recovery Drive window. The creation of the recovery media starts.
7. When the creation of the recovery media finishes, do one of the following:
To keep the recovery partition on your tablet, tap Finish.
To delete the recovery partition on your tablet, tap Delete the recovery partition.
Attention: If you delete the recovery partition on your tablet, do keep the recovery media in a safe place. The Windows recovery image will not be stored in your tablet anymore, and you will need the recovery media to refresh or reset your tablet.
8. Remove the USB drive. The recovery media are created successfully.
Using recovery media
If you cannot start your tablet, or if you cannot start the Windows recovery image on your tablet, use recovery media to recover your tablet. To use recovery media, do the following:
Note: Ensure that your tablet is connected to ac power.
1. Press the power button and the volume-up button at the same time when you turn on the tablet.
2. The ThinkPad Tablet Setup program main menu opens.
3. Tap Startup.
4. In the Boot submenu, drag the recovery drive to the first place to select it as the boot device.
5. Save configuration changes and restart the tablet.
6. Following the instructions on the screen to recover the tablet.
DISASSEMBLING PROCEDURE 
Back cover assembly
Use a plastic pry tool to detach the latches of the back cover assembly 3.
Built-in battery
Removal steps of the built-in battery
Remove the connector 1 , Then remove the screws 2
Remove the battery in the direction arrow 3