Check BIOS interface
Please press F 10 key continuously to enter the BIOS after booting, and check whether this phenomenon exists in the BIOS interface. If the machine has this phenomenon just after it is turned on, so does the BIOS. It is likely that the hardware such as the graphics card or screen is faulty.
Send it to HP Gold Service Center for testing.
In order not to delay your use, please send your notebook to the nearest HP Gold Service Center to check the specific reasons and then handle it. Tips: HP Gold Service Center has corresponding expense management regulations and specific expense information. I suggest you consult the staff there directly.
Call the Gold Medal Service Center.
Below is the contact information of HP Gold Service Center. It is suggested that you can call in advance before going. Contact information is as follows: Shop P6, Floor 1, Binjiang Mingzhu Building, No.45 Nandi Road, Chancheng District, Foshan City "Bus: Take the bus 128, 126, get off at Binjiang Mingzhu Station, or walk 200 meters directly to the bus station to the storefront." . 0757-82629533