HP 250 G6 Bios corruption

[Yas06]

Hello everyone. Today I changed my laptop HDD to SSD. Everything was fine. I rebooted my computer to windows 10 using the microsoft tool. I did all Windows updates and HP Support Assistant updates. And then support assistant suggest me to install new bios firmware and I install the latest firmware on support assistant. Laptop installed the latest firmware normally and rebooted itself and then boom. Laptop got black screen. At first I waited for a while, but after that I start to worry. I did everything to reboot or restore the bios but no laptop responding to anything. Just a black screen and fans nothing more.

+I tried to reset the cmos battery by pressing and holding the open button for 25-30 seconds, did not work.
+I try to reset cmos battery with unplug the cmos battery wait for a while and then press open button for a while and plug cmos battery, not worked.
+I made a bios recovery usb from HP driver website. But I couldn't see the recovery screen. I use "Win+B" "Win+V" "B" "V" "Win" "ESC" "CTRL" "ESC+CTRL" combination not worked.
+I reach the HP customer service but they didnt help me because my computer warranty was expired, I told them ıt happened because of a HP bios update but they didnt care.

I searched for a solution for hours but I couldn't find anything and I don't know what to do anymore. I need help please.

[BeemerBiker]

The original HDD has backup BIOS. 

If you cloned the HDD to the SDD then the backup BIOS should be on the SDD.

I looked at your BIOS revision history and the last update that actually did something useful was F.65

Use flash drive, 8gb, and download f.65 (or F.75 if you want to try again)

make sure the USB has LED lights so you tell if it is being used.

HP support video for bios recovery

Click here to see how to recover your BIOS.
Do 1, 2, and the first part of 3.
For the second part of 3 you will need a USB flash drive and possibly an
older BIOS if the recent BIOS caused the problem. Make sure the USB flash had LED lights.

For laptops, step 2 'CMOS reset' there is no CMOS battery nor CMOS switch and no need to open the laptop. Use the Windows key + 'v' as explained here.

To install from USB.
When you power up your system the LEDs on the flash drive should flash once at the instant power is applied. They will then flash about three to five seconds later (hopefully). When they flash a second time that means the files are being read from the flash drive. If you never see it flash a second time then the boot loader is damaged and you cannot recover the bios unless you use a programming tool or replace the chip. You hold down the Windows key + B key when powering up with the USB flash inserted.

Let me know if you need more help