Article 5NDV6 I can't access BIOS after I dual boot POP os along windows 10 on my Acer aspire 7 a715 75g 50sa

I can't access BIOS after I dual boot POP os along windows 10 on my Acer aspire 7 a715 75g 50sa

by
amarmanohar
from LinuxQuestions.org on (#5NDV6)
Sir,
I installed POP os on my laptop as dual boot along with windows. But after installing the os everything works normally but when I switch on the laptop, it would go directly to Windows. I would have to press F12 and select POP os to go to POP os.
When I tried to enter the BIOS and change the boot order, I can't access the BIOS. When I press F2, only a blank screen with a nonblinking underscore is visible.
When I uninstalled POP os again, It works normally and I can access the BIOS by pressing F2.

The steps I used to install the OS is:
Downloaded the iso image from the website
Made a USB flash drive
Partitioned my 512 GB SSD
Entered the BIOS, disabled the secure boot and fast boot, and changed the SATA operation to AHCI
Then I booted from the flash drive
Then I custom installed POP os.

Both the operating systems were working perfectly.
But I am not able to access the bios. What should I do?

MY LAPTOP DETAILS:
Acer aspire 7 a715 74g 50sa
Intel i5 9th gen
Ram:8gb
SSD:512 gblatest?d=yIl2AUoC8zA latest?i=IQuxWml1HHM:7Ipta7nNsPc:F7zBnMy latest?i=IQuxWml1HHM:7Ipta7nNsPc:V_sGLiP latest?d=qj6IDK7rITs latest?i=IQuxWml1HHM:7Ipta7nNsPc:gIN9vFwIQuxWml1HHM
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