GOOD NEWS!!! Many many thanks to @Serg008 ... Bro, you saved us!!! I got my computer back running.I extracted all BIOS bin file from v1.11 to v1.06. Received CH341a SPI programmer today and did backup of corrupted BIOS (v1.10) and installed first v1.10 and it was running so got little more bold and flashed v1.06 and the laptop running!!! I can see the secure boot is disabled, perhaps I will enable it. Lenevo Vantage also immediately recommended that BIOS update is need ...F*CK that s*cker! I can now update BIOS whichever version I like...v1.06 is the oldest BIOS supported on my machine (Lenovo Y740 15IRHg...i7 9750h with RTX2060). Read the readme file of the BIOS update, see what machine is supported. Don't waste your time and money with other methods and Lenevo if your computer is out of warranty and repair times, get this genius SPI programmer for 10 usd or so. You need to flash only main bios chip near battery. You need to pay attention to pin (especially polarity) and correctly place the IC clip. You need CH341a driver and AsProgrammer programmer (free), don't use others as others have trojon or viruses in them. If anyone need any help, please feel free to write me a private message.