good morning
After unpacking all parts of the device and re - install them again
The device works but stands on this screen
I can not go ahead and try many times
Turn it on and off but stand on this screen

Use F9, boot to DOS and do as we mentioned.

The keyboard does not respond
I do not know what to do

The device does not store BIOS settings
Keep on this screen and do not go ahead
I left him for a full hour without any progress
After pressing F1 remains so
With many attempts to open and close the button of the paw
Without any success, when pressing F9, the screen stands blank

Did you check CMOS battery voltage (Off the board) with multi meter yet? If not, do that now.

Then remove main battery too, remove wall power plug from back of laptop, and remove CMOS battery. Then press and hold power on button for 1+ minute to drain any remaining power.
Short Clear CMOS pins If you see those, then put all back. Looks like it's set to boot to Intel PXE instead of defaults, full clear of CMOS should resolve that.

I'll do it now and tell you the results

You replaced the CMOS battery with a new one
And I did as I commanded
It does not seem to be going on

Can you now press F10 and enter BIOS? Or can you boot to DOS by pressing the boot menu hotkey on startup?

The device remains stable on this screen
It can not proceed
There is no other solution
Out of trouble
The keyboard does not respond
When pressing F1, it remains fixed
Or pressing F9 or F10
There is no response

Did you try another keyboard, or USB or PS/2 keyboard (Try both if you have those type of slots), and also try other USB slots too to make sure some USB Slots aren't messed up.
And keep hitting the enter BIOS or boot menu hotkeys many times very fast (Do not hold), while the system starts up, before you see these screens
If that does not work, to allow you to press F9 or F10 to get BIOS or boot menu, remove the system hard drive and boot again, as soon as you see the logo or before keep pressing many times F10 to enter BIOS.
If you do get into BIOS, go to the boot order priorities (Device boot order) section and move PXE to last or remove it.

If error persists, leave hard drive removed, remove main battery, remove CMOS Battery, unplug power cable from rear, press and hold power on button for 1+ minute.
Then let it sit like this for a few hours, with no power and no batteries connected, if there is clear CMOS Pins, put jumper on there and leave it while it sits.
After a few hours have passed (Maybe do this overnight while you sleep, then it's many many hours), put batteries back, remove CMOS Jumper if placed, and plug back in.
Then boot and try to enter BIOS, if you get in load optimal defaults again, and then check boot priority (Device boot order) to ensure that PXE is not first in the list (Make it last or remove)

This is "Stuck in PXE Boot" if you want to google around and maybe find others with similar situations, or even google for stuck in PXE boot HP
You will find all similar stuff to what I mentioned, but you can see this is common issue Easy to fix though, I think we probably just didn't clear CMOS Long enough previously when we tried.

Thank you very much for the useful article
I will do everything I ordered

Hope you get it, fingers crossed! Don't get in hurry, sometimes long time clearing CMOS helps vs short clear CMOS or battery swap etc.

After a lot of attempts it succeeded in entering the F9
FPT did not work
We did not get anything
And entering the BIOS did not save anything
I do not know what to do
I can not access Windows
The device turns on Power and then reboots again
please help me

You should have used F10 and entered BIOS and fixed the settings, that's all you need to do, you do not need to flash anything and I really suggest you stop trying for now since you know BIOS was working, just right now has incorrect boot setting (PXE first and before HDD)

But if you want, FPT works, you have used it in DOS before. I see in image, you are not using commands correctly

No need to flash BIOS, it's OK, but you can reflash it if you want, if you know that backup file you are using is OK
FPT.exe -bios -f backupbi.bin

Then (this requires ME/FDO jumper on)
FPT.exe -me -f ME2.bin

Then
FPT.exe -greset

Then on reboot F10 repeatedly as soon as it starts running, not F9. Then once in BIOS adjust the settings as I mentioned @ "Device boot order" move PXE to end or remove, and put HDD first/top of list

I can not access the F10
I have inserted USB
The device enters DOS only
What should I do