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This troubleshooting page will help you diagnose problems with the HP Elitebook 840 G5.
Problems with wifi connection
The computer does not connect to wifi or has a yellow exclamation mark over the wifi symbol saying it is a limited connection.
Wireless card needs to be reset
Right click on the wifi sign and click Troubleshoot Problems. Follow instructions once the test is over.
If this test does not fix it, Follow these steps:
- Right click on the wifi symbol again and click Open Network and Internet Settings.
- At the bottom there is something that says Network reset. Click Network reset.
- Click Reset now.
This will reset the network adapters completely and restart your computer.
Wireless card is broken
If resetting the wireless connection did not work, your wireless card may be faulty or installed incorrectly. Please follow our guide here how to reinstall or replace your wireless card. HP EliteBook 840 G5 WIFI Card Replacement
Computer Does Not Power On
You have your computer plugged in and you push the power button but it does not turn on.
Faulty Power Adapter
Make sure sure the charging port is clear of debris. You can do this by cleaning out the port or blowing in it. Confirm that the indicator light on the adapter is lit, showing that the adapter is receiving power. If this light is not on, the power adapter may be faulty.
Faulty RAM
If the computer beeps several times but fails to turn on, the RAM is at fault. Follow our replacement guide for RAM HP EliteBook 840 G5 RAM Replacement.
Faulty Hard Drive
If the laptop displays a "Drive not detected" error on startup or during use, the Operating System may be having issues. To resolve the issue:
- Get a Windows installation for the version the computer is running.
- Click Boot to the Windows installation
- Click Repair your computer.
- Click Startup Repair and let the program run.
Startup Repair will resolve any issues that would prevent the computer from powering on. If Startup Repair does not resolve the issue, the hard drive has probably failed. Follow this replacement guide to replace the hard drive HP EliteBook 840 G5 SSD Storage Replacement
Does not Hold Charge
The Laptop only functions when it is plugged into a power source.
Dead Battery
Your computer probably has a dead battery. We can check if this is the case by following these simple steps:
- Turn on the computer and quickly press the esc key
- Press the F2 key to select diagnostics
- Follow the on screen instructions to start battery diagnostics
- If diagnostics reports that the battery is consumed, follow this guide to replace the faulty battery. HP EliteBook 840 G5 Battery Replacement
Webcam shows black picture when opened
- Slide webcam cover to the side
Blue Screen of Death
"The computer only shows a blue screen when powered on"
Hard Drive
- Depending on the issue, the hard drive may need to be replaced. Make sure your motherboard is compatible with the hard drive you choose to install. Follow our replacement guide HP EliteBook 840 G5 SSD Storage Replacement.
RAM
- Depending on the issue, RAM must be replaced. Check for RAM types that are compatible with your motherboard before installing. Follow our RAM replacement guide HP EliteBook 840 G5 RAM Replacement.
No picture displayed on screen
"The computer powers on but doesn't display an image"
Screen replacement
- Your screen might be broken and might need to be replaced
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Cal Poly, Team S25-G13, Maness Spring 2018 crwdns2935289:0Cal Poly, Team S25-G13, Maness Spring 2018crwdne2935289:0
CPSU-MANESS-S18S25G13
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The power is on, on my laptop hp 840 but you can only hear the fan, the screen is blank there is nothing there. I don’t know what it is.
calo15us - crwdns2934203:0crwdne2934203:0
How did u fixi it ?
Imane Bouchnafa -
Mine too shows black
brian bett -
Pointer not showing on the screen
Usman Sani - crwdns2934203:0crwdne2934203:0
Mine is connected to dockingstation, goes to sleep and the does not remember it’s own screen. Not even shown in Display settings. It thinks the external monitor is it only screen. disconnecting from dock leaves the laptop screen black, not even backlighting on. Dispaly driver is the latest and windows update is happy with it how is. I have to restart disconnected from dock to get the screen going again. How do you troubleshoot this?
[deleted] - crwdns2934203:0crwdne2934203:0
When I purchased the HP Elitebook 840 G5, it worked properly on the first day. However, on the second day, it started showing errors. Initially, the audio driver was not working, but I downloaded the proper driver to fix the issue. After a few days, the PC started shutting down on its own when I connected it to Wi-Fi or plugged in a USB driver. Additionally, it became difficult to open the PC and would only open after multiple shutdown and restart attempts. When it did finally open, it would restore to the last update. However, after a few more days, it stopped opening altogether and only displayed the message "preparing for automatic repair." what is the problem and how can i fix this problem?
sun - crwdns2934203:0crwdne2934203:0