MeatWar, I want to thank you for your help as well!
It was my first experience flushing BIOS with CH341A SPI Programmer. I want to say that if you carefully follow all guidelines it’s not so difficult.
I have:
GigaDevice 25B127DSIG chip
ACEIRMC SOIC8 SOP8 Test Clip For EEPROM 93CXX / 25CXX / 24CXX + CH341A 24 25 Series EEPROM Flash BIOS USB +1.8V Adapter + Soic8 Adapter Programmer Module Kit (1 sets) - This I bought from Amazon for $13.89 USD. Now I realize that I could buy a cheaper option with only USB CH341A Programmer and Soic8 Adapter.
Software: AsProgrammer 1.4.1 + Windows 10 x64.
Good luck to you all who have the same issue.
It is worth doing it because many features in G15CE BIOS are locked.