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• Laptops with Windows 10 recovery. Use the Windows 10 built-in recovery.
  Laptops with Windows 10 recovery. Use the Windows 10 built-in recovery.Under setting, choose "Back & Recovery" option.
• Lenovo laptop one key rest to factory default
  Just press the "NOVO button", the upside down U. No need to press the power button.https://support.lenovo.com/ca/en/solutions/ht503785
• Laptop cannot power on by pressing the power button. Unit can charge (Charging LED is on when plug-in AC adapter)
  Check the power buttion board and related cable.
• Laptop can be power on, but no display and no back light on.
  Diagnostic step:* Remove the system ram and press power on to see if any beep sound come out. If it beeps then it can mean
• Laptop cannot boot.
  Scenario 1: Charging LED is not on Scenario 2: Charging LED is on, but can not power on by pressing power button.
• Laptop battery is not detected.
  Reconnect the battery cable to the system board.If the battery use pins for charging, check the pins first. In some cases, pins are baned.
• Laptop's trackpad not working.
  Mainboard is more likely the issue than defected trackpad or cable.Try to get the testing mainbaord form Part department without ordering first.
• Laptop has slow or no internet connection. ping TTL time should be 2ms ~ 5ms. Around 10ms is ok.
  Update driver first and restart OS. If the issue remain the same,  reseat the Wi-fi card and antenna .If the ping value remain unstable, high, or