HP Envy dv7t-7200 Troubleshooting

You have trouble hearing sound from speakers on your laptop.

The volume on your laptop could be muted or turned to a low volume setting which is causing the lack of sound from the speakers. Click on the sound icon in the task bar, located in the lower right hand side of your screen. Select "Mixer", then make sure that none of the sound applications are muted. This can be seen by looking at the Mute buttons below the volume slider. If there is a red circle that is crossed, the volume is muted. Next, raise up the volume sliders and listen for a ding noise.

Note: The noise will not happen if you hold the slider in place.

If the computer does not have sound when listening through the laptop speakers, the audio drivers may not be installed or may be corrupted. To check if your audio drivers are installed and working properly, use the following steps. Right click on Windows icon, then click on "Device Manager". Expand "Audio Inputs and Outputs", then double click on "Speakers". On the new Windows screen, click on "Drivers", then click on "Update Drivers". Search automatically for updated driver software.

Your laptop will not turn on after pressing the power button.

Verify that the power cord is plugged in. If the the light on the power adapter does not come on consider replacing the adapter.

If the laptop only runs when the power adapter is plugged in, or the battery dies quickly regardless of how long it is charged, this reflects a faulty battery. Consider replacing the battery and see the instructions provided in this guide to replace the battery.

Your device is can not connect to the wireless network (Wi-fi).

If you are unable to gain a wireless connection, try restarting your computer to refresh the connection.

You may not have wireless connection due to your wireless key being disabled. On your keyboard, this is located on the F12 key with a wireless icon. Press this key and wait 10 seconds. This key should change from an amber color, which signals off, to a light white/blue color, which shows wireless is enabled.

Some wireless connection issues can be repaired by the laptop itself using its internal Network and Internet Troubleshooter. Right click on the wireless icon located in the bottom right hand corner of your display in the notification area. Select "Troubleshoot problems". After this runs, information will be listed in the new window that can help you identify where your wireless connection issue is starting. The issue could be caused by your modem or router, if so, you will need to follow troubleshooting for those devices or call your service provider.

The network adapter could be experiencing issues which causes wireless connection problems. If this is the source of this issue, uninstalling and reinstalling the network adapter should fix the inability for your laptop to connect wirelessly. Click on Windows icon then click on "Device Manager". Click on "Network Adapter", then right click on the wireless driver. Select "Uninstall", and then restart your computer. Your laptop should automatically reinstall the network adapter driver information to automatically connect to the wireless connection. If this does not help, follow the same steps once more, but instead of uninstalling choose "Update driver", then attempt to reconnect.

Your screen is not responding and is completely black with no error messages showing.

Press the power button and listen for normal start up sounds. If there are none, this could mean the laptop has a faulty battery or power adaptor. See the above section Laptop Will Not Turn On and Battery Replacement Guide.

Your laptop could be displaying a black screen because it needs updated software. To identify this as the issue, turn the laptop off. Using a VGA or HDMI connector cable, connect the laptop to an external monitor. Connect both the laptop and the external monitor to their AC power. Press the power button on both the laptop and the external monitor.

If the diagnostic steps above have been performed and the external monitor shows an image but not the laptop, download and install the latest BIOS, the latest graphics driver, and the latest CPU chipset. To upgrade your BIOS, graphics driver and make sure you have the latest CPU chipset see HP's official website.

Your laptop may be experiencing startup issues which can cause a black screen. To identify this as the issue, turn the laptop off. Using a VGA or HDMI connector cable, connect the laptop to an external monitor. Connect both the laptop and the external monitor to their AC power. Press the power button on both the laptop and the external monitor.

If the diagnostic steps above have been performed and neither the external monitor or laptop shows an image, and the computer does not start properly, this suggests a startup problem, not a display problem. See HP's official website for diagnosing and fixing startup and booting issues.

Your computer does not boot normally on startup, or is not responsive during normal operation.

If your computer stops working during a rigorous task or will not boot up, check to see if the main components are functioning properly by running Hardware Diagnostics System. This test checks the processor, system board, hard drive and RAM. To test the main components, begin by pressing and holding the power button for about 5 seconds to turn off the computer. Press the power button to turn back on the computer and immediately press the F2 key repeatedly until the "Hardware Diagnostics" screen is displayed. Click on "System Tests", the click "Quick Test". Click "Run Once".

This test will display any failed components, you can enter this information into the HP Diagnostic Failure ID Decoder to help you move forward.

If your computer stops working during normal operations or takes long to boot, it could mean that you have a problem with your RAM. You can find out this information from the above Hardware Diagnostic Test. To change/upgrade your RAM see the following Replacement Guide.

Your laptop could be freezing or locking up due to a lack of updated drivers and software. Click on the Windows icon then search for "Update". Select "Windows Update" then click on "Check for updates". Install any available updates and follow prompts.