because the device is locked, perform the steps in Entering into Recovery Mode, and then proceed to the next step.
Touch
System
Developer options
.
Slide the
USB debugging
switch to the
ON
position.
Touch
OK
.
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
or
Allow
.
On the host computer, navigate to the
platform-tools
folder and open a command prompt window.
Type
adb devices
.
If the device number does not appear, ensure that the ADB drivers are installed properly.
Type
adb reboot recovery
.
Press
Enter
.
The System Recovery screen appears on the device.
Tap the touch panel to advance to the next menu choice and navigate to
apply upgrade from adb
.
If
Apply downgrade from ADB
is selected, an Enterprise Reset is performed on whatever upgrade or downgrade package is provided.
Press
Scan
.
Tap the touch panel to navigate to
Full OTA Package or Diff OTA Package
.
Press
Scan
.
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.
