Power on

[MNMO]

My zbook fury G6 17” power socket light blinks fast 11 times after connecting it and opening the lid, then stops and all the keyboard lights then illuminate briefly and go out and no sounds occur, display remains blank then the the power socket led lights blink again 11 times and it goes through the same sequence many times all without starting up. Leaving the display closed and the power lead contacted results in the laptop getting warm. If I open the lid the same thing happens. I have removed the battery and drained all residual power by pressing the power on button for a minute and when I reconnect the battery press the power on button the above cycle starts again and it doesn’t power up. The last time I turned it on before all the above mentioned activity was after the laptop had been unused and unconnected to a mains power supply for several weeks. I connected the mains adapter lead, turned it on and the screen displayed a message “installing system updates” so I left it to carry on. When I returned, the screen was blank and the laptop was doing what I have described at the outset. What can I do? I have tested the mains adapter with a digital multimeter and it is showing 19.5 ish volts dc and I know it’s the correct adapter. Is there any way of checking the laptop battery when it’s removed from the laptop? Will replacing it be of any use?

[M_Salman]

Hi @MNMO,

It sounds like your HP ZBook Fury G6 17" is experiencing a power or startup issue. The blinking lights you described, along with the startup failure, indicate that there may be a diagnostic error. Let’s go through some troubleshooting steps that may help resolve the issue:

1. Understand the Blinking Code:

   • HP devices use blinking light codes to indicate specific errors. The 11 blinks you’re experiencing could correspond to a particular hardware failure. Reference your user manual or visit the HP support site to find detailed information about what 11 blinks mean for your specific model.

2. Perform a Hard Reset:

   • Turn off your laptop and disconnect all peripherals.
   • Unplug the AC adapter from your laptop.
   • If the battery is removable, take it out.
   • Press and hold the power button for about 15 seconds to drain residual power.
   • Reinsert the battery and connect the AC adapter.
   • Try turning on the laptop again.

3. Check Power Supply:

   • Ensure that the power adapter and cable are working properly. Try using a different, compatible power adapter to rule out any issues with the current one.

4. Inspect the Battery:

   • If your laptop has a removable battery, remove it and power on the laptop with just the AC adapter connected. This will help identify if the battery is causing the issue.

5. Check the RAM:

   • Sometimes, faulty RAM can cause boot issues. If you're comfortable doing so, reseat the RAM modules by removing them and placing them back in their slots. Ensure they are properly seated.

6. Connect External Monitor:

   • Connect your laptop to an external monitor to check if the display works on a different screen. This will help determine if the issue might be related to the laptop's display.

7. Update BIOS and Firmware:

   • If the laptop starts up, check for any available BIOS updates from HP's support website. Installing the latest updates might resolve startup issues.