⟐ Answer edited May 01, 2020 at 14:41 MST

⟐ Answered April 08, 2020 at 1:49 MST

⟐ Answer edited October 05, 2020 at 5:48 MST

⟐ Commented September 13, 2022 at 16:58 MST

⟐ Commented July 13, 2020 at 17:20 MST

⟐ Answer edited December 30, 2022 at 22:45 MST

⟐ Answered December 03, 2022 at 21:09 MST

I am currently trying to repair a ZBook 17. After plugging in the power adapter the leds blink for 3 seconds and it turns off again, the screen remains black.

After a while of troubleshooting i found that when I unplug the display cable from the motherboard OR from the display unit (and connecting an external VGA screen) it gets to POST.

Can this be caused by a bad display cable although it is causing no error when it reamins plugged in the motherboard and is disconnected only at the LCD? How can I determine what exactly is causing the issue? For all I know it could also be a bad LCD or even a problem with the graphics card or motherboard.

I don’t want to buy replacement parts before I know for sure what is causing the problem. Can I narrow it down further without buying any parts?

⟐ Commented October 20, 2020 at 10:13 MST

I have quite a serious problem with my laptop (HP Zbook 17) where the following things are faulty:

• Battery not charging
• Keyboard is unresponsive, have to press really hard
• Trackpad unresponsive
• CPU fan almost never works

Because the diversity of issues, my first thought went to the motherboard however I’m not certain as I’m not very familiar with laptop hardware.

What would be the best step to take to further diagnose the problem?

I’ve had this issue for over a year now but I never really bothered trying to fix it because I mainly use a desktop however I’d like to know if it’s still worth trying to repair it or if I’d be better off just buying a new machine.

Thanks in advance,

Simon

⟐ Answer accepted October 08, 2019 at 14:22 MST

⟐ Answer accepted September 22, 2019 at 11:40 MST

1)Does the hardware exist and I have to purchase software from HP to activate the module?

2) Do I have to buy a module from HP or someone else. Add module it to the laptop? If this is the case, Any soldering involved? Would you guild be to a documentation or picture to see what I am getting into.

Thank you.

adsfission

⟐ Answer accepted September 20, 2018 at 5:20 MST

⟐ Answer accepted August 06, 2017 at 11:04 MST

⟐ Commented April 26, 2017 at 7:00 MST

⟐ Answered February 11, 2017 at 15:21 MST

Recently it developed a strange bug. Occasionally, when I turn it on after either a full shut down or a hibernation, it would start boot up sequence, but shutdown after only a second, not even loading the BIOS. As a result, no error log is generated to check what might be the problem. And after that, if you wait a few seconds and boot up again - it starts normally as nothing happened… Usually just waiting a few sec is enough, although a few times I had to wait more for some reason.

I first thought it could be battery, but I had it occur without battery too. It has happened both after I left the laptop plugged in and after I disconnected it and took it with me elsewhere. Also, as it is kinda hard to reproduce, so it is difficult to analyse. Any idea as to what might cause this?

⟐ Commented September 08, 2020 at 2:18 MST

Имеется ноут HP Zbook 15, уже весьма не новый (куплен в 2014), кроме заводской конфигурации стоит ещё SSD на М2 слоте.

Недавно появился странный баг - иногда при включении или выходе из спящего режима ноут начинает включаться, но тухнет, даже не дойдя до заставки биоса. При этом если подождать пару секунд и включить опять, то загружается как обычно, также не генерирует стандартный “виндовс завершила работу не корректно”. Пару раз было что глюк повторялся несколько раз подряд, но в большинстве случаев подождать пару сек и включить опять - достаточно.

Поначалу думал что может быть проблема с батареей, но без батерии глюк тоже пару раз повторялся, так что думаю не оно. При этом глюк редкий и плохо воспроизводится, но однозначно таки присутствует. Подскажите в какую сторону стоит искать…

I need to replace or disconnect the speakers of my zBook 15 because one of them is making a cracking noise when volume is above 30%. Could you help me with instructions?

Thanks in advance!