HP 22-df0019ur stopped loading at all

[Severga]

When I plug in power supply the back led turns on. When I press power button the fore led turns on, the fan starts to rotate, the HDD also starts. But the display remains black (totally nothing; off). The keyboard is not activated (lock buttons do not work, leds are off). The computer shuts down only after pressing and holding the power buton for several seconds. The computer was purchased on the 29th of April, 2021. I just installed LinuxMint 20 Cinnamon on it and moved my data from the old PC. Six days it worked normally. Yesterday it shut down normally, but today it failed to start at all. At night time it was unplugged from the power supply, thus there couldn't be any shocks. What could it be? What can I do in this situation? And how can I get my data back from the HDD?

[itsmyname]

> purchased  29th of April, 2021.

Did you buy it from a store that has a "30 day no questions asked" return policy?

Any computer purchased from HP has free support (30 days? 90 days?) from HP. Contact HP Support.

Can you remove the disk-drive from the computer, and connect it as a secondary disk-drive in some other computer running the same variant of Linux, and copy your files from that disk-drive to the primary disk-drive?