Need help in modding bios of my acer predator helios 300 PH315-51-73SR

I have an acer predator helios 300 PH315-51-73SR laptop and my gpu gtx 1050 ti when in use shows weird artifacts and pixels on the screen and bsod and restarts , my laptop is out of waranty and the service centre guy told me it requires motherboard replacement , but it costs half the price of my laptop and i cant afford it , i can still use my laptop by disabling the nvidia gpu and by running it on integrated intel graphics but my hdmi ports are assigned to nvidia graphics card and the intel graphics card doesnt work when i connect my laptop to my external monitor , ive seen a guy on youtube with modded bios for my laptop with additional features unlocked to assign the hdmi port to intel graphics. So i request someone to mod the bios of my laptop and guide me installing it .

Thank you in advance.