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×InformationHP Solution Center Adobe Flash player error
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InformationFix Windows 10 Update IssuesResolve Windows 10 or update issues on HP computer or printer– Click Here
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12-16-2020 05:38 PM

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My device turns on and off continuously for a few minutes during startup, so that all the keyboard lights turn on and then off, the fans turn on and off for a moment, as well as the screen and ...
This takes a few minutes and then the device turns on. When turned on, it has no hardware issues and works normally.
The point is that this mode occurs when no time has elapsed since the laptop was shot, if about 40 minutes have elapsed, it will light up without interruption if that mode occurs.
system bios: N81 Ver. 01.52 - 10/28/2020 product number: W8D54UC#ABA
12-16-2020 07:26 PM

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@amir0985 , welcome back to the forum.
This sounds like it could be a power problem. Does this happen when you have the laptop plugged in to the power adapter or just when it is unplugged?
HP TouchPad - 1.2 GHz; 1 GB memory; 32 GB storage; WebOS/CyanogenMod 11(Kit Kat) Custom build: Corsair 750D Airflow (Full Tower); MSI MEG Z390 ACE; i9-9900K processor (OC'd 5.025); Corsair H150i cooler; Corsair Vengeance Pro 3200 memory ( 32 GB ); MSI RTX 2080 Gaming X Trio video card; MSI GH70 Immerse LED Headset; 3- Corsair QL140 RGB Fans w/Commander Pro and Lighting Node Core; Samsung 970 Pro 512 GB; Samsung 860 EVO 1 TB HP Spectre 360 Convertible; i7-7560U; 16 GB memory; Intel® Iris™ Plus Graphics 640; 512 GB PCIe® NVMe™ M.2 SSD; 13.3" diagonal 4K UHD UWVA eDP BrightView WLED-backlit multitouch-enabled edge-to-edge glass (3840 x 2160); Windows 10 Pro 64 with Windows Ink HP Photosmart 7855 AIO
I am not an HP employee. |
12-18-2020 12:17 PM

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It does not matter if the adapter is connected or not, it still happens. It should be noted that the battery is also completely healthy
12-18-2020 04:36 PM

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Thank you for the additional information, @amir0985!
This is one of those problems that is very difficult to diagnose. It could be a number of things causing it to happen. However, I still believe that it could be the power adapter. I suggest that you have it tested. Since it doesn't matter if it is plugged in or not and the battery is healthy, and it mainly happens when you first turn on the laptop, it sounds like there is a short in the adapter. After it runs for a bit the heat causes the wires to expand and no short.
I had a similar problem with a desktop years ago. The power supply unit (PSU) had failed.
HP TouchPad - 1.2 GHz; 1 GB memory; 32 GB storage; WebOS/CyanogenMod 11(Kit Kat) Custom build: Corsair 750D Airflow (Full Tower); MSI MEG Z390 ACE; i9-9900K processor (OC'd 5.025); Corsair H150i cooler; Corsair Vengeance Pro 3200 memory ( 32 GB ); MSI RTX 2080 Gaming X Trio video card; MSI GH70 Immerse LED Headset; 3- Corsair QL140 RGB Fans w/Commander Pro and Lighting Node Core; Samsung 970 Pro 512 GB; Samsung 860 EVO 1 TB HP Spectre 360 Convertible; i7-7560U; 16 GB memory; Intel® Iris™ Plus Graphics 640; 512 GB PCIe® NVMe™ M.2 SSD; 13.3" diagonal 4K UHD UWVA eDP BrightView WLED-backlit multitouch-enabled edge-to-edge glass (3840 x 2160); Windows 10 Pro 64 with Windows Ink HP Photosmart 7855 AIO
I am not an HP employee. |

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