Connect the device to a host computer using a USB-C cable.
Go to
Settings
.
Touch
System
Developer options
.
Slide the
USB debugging
switch to the
ON
position.
If the device and host computer are connected for the first time, the
Allow USB debugging?
dialog box with the
Always allow from this computer
check box displays. Select the check box, if required.
Touch
OK
.
On the host computer, navigate to the
platform-tools
folder and open a command prompt window.
Type
adb reboot recovery
.
Press
Enter
.
The System Recovery screen appears on the device.
Press
+
and
-
to navigate to
Apply upgrade from ADB
.
Press
Power
.
On the host computer command prompt window, type adb sideload <file>.
where: <file> = the path and filename of the zip file
Press
Enter
.
The System Update installs (progress displays as a percentage in the Command Prompt window), and then the System Recovery screen displays on the device.
