Initiate a Factory Reset on the ET40/ET45 using ADB.
Go to the Zebra Support & Downloads website at zebra.com/support and download the appropriate Factory Reset file to a host computer.
Connect the device to a host computer using a USB-C cable.
When transferring files or debugging, ensure only one USB connection to the device exists. For example, do not dock the device or attach an expansion back if using a USB cable.
Go to
Settings
.
On A11, touch
System
Advanced
Developer options
.
On A13, 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 devices
.
The following displays:
List of devices attached
XXXXXXXXXXXXXXX device
Where XXXXXXXXXXXXXXX is the device number.
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.
Press
Volume Up
and
Volume Down
buttons 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 Factory Reset package installs, and then the System Recovery screen appears on the device.
