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Lenovo G50-80 80E5 Troubleshooting

The Lenovo G50-80 80E5 is a laptop with a 15.6" screen released in 2015 with several RAM and hard disk drive options. This cost effective option shipped with Microsoft Windows 10 Home Edition.

Battery will only charge to 60%.

Charging percentage start and stop points can be controlled through the power management software. This is feature can help prolong battery life by reducing unnecessary charging of the battery.

To check these settings, click the "Settings" button. Un-check "Optimize For Battery Run time" under "Battery Health" and the problem will be resolved. “Optimize For Battery Run time" is to protect the battery and extend the lifespan of the battery. Because the lifespan of one battery is related to its charging circle, the power charging will automatically cut off to protect the battery when the power reaches to a certain amount.

If the issue persists, try reinstalling the power management software. Uninstall Lenovo energy management. Re-install the battery then charge the battery completely. Restart the laptop and install Lenovo energy management software again.

Attempts to turn on the device fail.

To check the AC adapter, unplug the AC adapter cable from the computer. Measure the output voltage at the plug of the AC adapter cable. The center pin of the plug should read +20V relative to the outer metal casing of the plug. Measured voltage on the outside casing should be 0V. If the voltage is not correct, replace the AC adapter. If the voltage is acceptable, you must replace the system board.

To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.

If the battery status indicator or icon does not light on remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack. If the charge indicator still does not light on, replace the system board.

Battery charging does not start until the Power Meter shows that less than 95% of the total power remains. Under this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or from having a shortened life.

To check your battery, move your cursor to the Power Meter icon in the icon tray of the Windows Taskbar and wait for a moment (but do not click it), and the percentage of battery power remaining is displayed.

To get detailed information about the battery, double-click the Power Meter icon. Note: If the battery pack becomes hot, it may not be able to be charged. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it.

The screen stays black after the device powers on.

Affected ThinkPad systems that were updated to Microsoft Windows 8.1 prior to October 28, 2013 may no longer boot. Microsoft Windows 8.1 will hang at a black screen with a visible mouse pointer. Although the mouse pointer can be moved around the screen, it is not possible to log into the system.

To resolve the issue boot into Safe Mode to uninstall and delete the NVIDIA display adapter driver from Device Manager. At the black screen, press and hold the power button until the system powers off. This typically takes 5-8 seconds.

With the system still powered off, press and hold the Shift and F8 keys. While still holding Shift and F8, press and release the Power button. Continue to hold Shift and F8. The Lenovo logo should appear on the screen followed by “Please Wait”. Release Shift and F8 at this time. You should now see a Recovery screen. In case you only see a blank screen and not the Recovery screen, retry the previous steps.

From the Recovery screen, click on See advanced repair options. Click on Troubleshoot. Click on Advanced Options. Click on Startup Settings. Click on Restart. The PC will now reboot to the Startup Settings screen. Press 4 to “Enable Safe Mode” as prompted.

The PC will now boot to Safe Mode. Enter your user name and password as prompted, to log into Safe Mode. Open the Start screen. Type “devmgmt.msc” and press Enter to start Device Manager. Double-click on Display Adapters to expand the Display Adapters category. Right-click on the NVIDIA NVS device, and choose “Uninstall” from the menu. At the “Confirm Device Uninstall” prompt, check the box “Delete the driver software for this device” and then click on OK. Restart the PC.

The PC will now boot to Windows normally. Enter your user name and password as prompted, to log into your PC. Make sure your internet connection is working, then run Windows Update. Choose to install all available updates.

If the above steps did not correct the issue there might be an issue with the LCD screen; please visit the nearest authorized service center.

Individual keys or the entire keyboard does not work correctly.

Plug in an external keyboard via a USB port and confirm that you are able to type with the connected keyboard. Confirm the Region and Language settings in the Control Panel. Restart the computer and try again.

In the Control Panel confirm that the Region and Language settings are set to United States. Restart computer and try again.

Via the onscreen keyboard, confirm that you are able to type with the key or keys that are malfunctioning. At this point if you are unable to input commands to the computer via the physical or onscreen keyboard you will have to perform a factory reset.

Track-pad will not move mouse pointer and mouse keys don’t function.

Connect a USB mouse to confirm movement of the mouse pointer and proper mouse key function.

From the device manager uninstall the driver for the track-pad and restart the computer. The driver will automatically reinstall once the computer reboots. If the driver fails to install, download a new driver from the Lenovo Support Site and install it.

If the track-pad and buttons fail to work after reinstalling the driver you must perform a factory reset with this guide.

The laptop does not register USB devices plugged in.

Unplug the USB device from the laptop and plug it back in to ensure it is properly connected.

Plug another USB device into your laptop that is functional. If the new device works it may be an issue with the original device itself.

Check the USB port for dirt or debris, it can be cleaned with a cotton swab and rubbing alcohol.

If none of these solutions work the USB port might be faulty and in need of replacement

/Follow this guide for instructions.

The laptop can’t access RAM, an error screen, corrupt files or frozen screen may be experienced.

[|A guide to reset your computer can be found here].

These symptoms can also be caused by a virus which could be detected with a good antivirus program.

If none of these previous solutions help, use this [|guide to replace your RAM].

If after replacing the RAM you may need to [|reset the device] to factory settings.

‘’My computer is taking longer to load programs and start up.’’

Over time, dust collects in the vents of the laptop and can clog the cooling fan. This can slow the computer down and if left untended will lead to a triggered shutdown to prevent the laptop from overheating. To clear dust and other debris from the laptop’s cooling vents with a can of compressed air and aim nozzle into cooling vents on the side of the laptop.

Spray air into vents to loosen and remove clogged dust and debris within the vents.

If the previous steps prove ineffective, you will need to remove the cover of the laptop. Use this [|guide to remove the cover].

Once you have removed the laptop cover, locate the device’s cooling fan and use the can of compressed air to clear the fan of dust and debris. When finished, replace the laptop cover.

A slow computer might be the result of a control panel crowded with programs and software. To boost performance of the laptop, you can uninstall unneeded programs from the computer’s control panel. Be sure to backup all documents and system settings related to the program before you remove it.

To locate the control panel use the search bar located next to the Windows Start task bar and type in control panel. Select Control Panel from the results. After opening the control panel, select Programs and Functions. Locate the program(s) you wish to uninstall in the Programs and Functions dialog bar and select Uninstall/Modify.

Anti-virus software can slow down your computer. You may need to update or modify the anti-virus software running on your laptop. If the anti-virus software your computer is running is dated, you will want to replace it with a newer version. Your computer should only be running one anti-virus software at a time. If it is running more than one, that may be what is slowing it down.

If you have had the computer for a long time, it may be time to replace the RAM or hard drive. A full hard drive can seriously slow down your computer. Use this guide to replace your RAM. Use this guide to replace your hard drive.

Before reinstalling Windows, be sure to make a back-up your data first, as the laptop’s hard drive may be affected by the re-installation.

To reinstall Windows, insert the Windows program disk into the laptop’s disk drive and allow for full re-installation process. This will automatically uninstall the old program as well.


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