Chosen Solution
i was on UEFI mode on my laptop and i did changed it to bios mode: after that i cannot get into bios :( also tried let battery drain until 9% and tried to enter to bios no luck :( currently i’m on A13 bios version
When turning on the computer, repeatedly hit F11 or F12 (depends on the machine). This will go to the Dell Boot menu screen which let’s you choose which drive to start up from. BIOS setup should also be the last option there.
Were you trying to flash the bios? What happens when you hit F2 on the keyboard? Nothing? Have you tried an external keyboard? What does it do when it fails your command to go to bios? Does it boot to windows? Have you tried taking the Hard Drive out and then trying to get to bios? Then it will more than likely give you the option to go to setup and then you can get there and make your changes that you need to make.
This Dell laptop would not go directly into the BIOS screen but f2 would start the system repair for Win10. Choosing the advanced options eventually found a choice to start in UEFI BIOS. that is the choice you want. It immediately opened the usual BIOS screen.
Disconnecting the CMOS battery really helped, a quick and easy way to access BIOS settings! Dell is the best
