F2 is the board looking for a Recovery Image to restor the BIOS by attempting a automated flash!
put the USB stick back in and leave it till it hits the F2 and leave it for upto 30mins and hopefully it will succeed in recovering the BIOS/UEFI!
put the USB stick back in and leave it till it hits the F2 and leave it for upto 30mins and hopefully it will succeed in recovering the BIOS/UEFI!