Dell Inspiron 17 7778 2-in-1 Inspiron 177000 Series 2-in-1 Service Manual - Page 129

Fixing a no-boot issue caused by USB emulation, Wi-Fi, Turning on or off Wi-Fi

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4 Select or clear the Enable External USB Port check box to enable or disable it respectively. 5 Save the BIOS setup program settings and exit. Fixing a no-boot issue caused by USB emulation Sometimes the computer does not boot to the operating system when USB devices are connected to the computer during startup. This behavior occurs because the computer is looking for bootable files in the USB devices. Follow these steps to fix the no-boot issue: 1 Turn on or restart your computer. 2 Press F2 when the Dell logo is displayed on the screen to enter the BIOS setup program. The BIOS setup program is displayed. 3 On the left pane, select Settings → System Configuration → USB Configuration. The USB configuration is displayed on the right pane. 4 Clear the Enable Boot Support check box to disable it. 5 Save the settings and exit. Wi-Fi The Inspiron 17-7778 is shipped with Wi-Fi 802.11ac. Turning on or off Wi-Fi NOTE: There is no physical switch to enable or disable Wi-Fi. It has to be done through computer settings. 1 Swipe-in from the right edge of the display, or click or tap the Action Center icon on the taskbar to access the Action Center. 2 Click or tap Wi-Fi to turn Wi-Fi on or off. Downloading the Wi-Fi driver 1 Turn on your computer. 2 Go to www.dell.com/support. 129

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4
Select or clear the
Enable External USB Port
check box to enable or
disable it respectively.
5
Save the BIOS setup program settings and exit.
Fixing a no-boot issue caused by USB emulation
Sometimes the computer does not boot to the operating system when USB
devices are connected to the computer during startup. This behavior occurs
because the computer is looking for bootable files in the USB devices. Follow
these steps to fix the no-boot issue:
1
Turn on or restart your computer.
2
Press F2 when the Dell logo is displayed on the screen to enter the BIOS
setup program.
The BIOS setup program is displayed.
3
On the left pane, select
Settings
→
System Configuration
→
USB
Configuration
.
The USB configuration is displayed on the right pane.
4
Clear the
Enable Boot Support
check box to disable it.
5
Save the settings and exit.
Wi-Fi
The Inspiron 17-7778 is shipped with Wi-Fi 802.11ac.
Turning on or off Wi-Fi
NOTE:
There is no physical switch to enable or disable Wi-Fi. It has to be
done through computer settings.
1
Swipe-in from the right edge of the display, or click or tap the
Action
Center
icon on the taskbar to access the Action Center.
2
Click or tap
Wi-Fi
to turn Wi-Fi on or off.
Downloading the Wi-Fi driver
1
Turn on your computer.
2
Go to
www.dell.com/support
.
129