User's Guide

Download Guide – Dubai Android

2017

Honeywell

Honeywell Confidential and Proprietary Revision 11 – Draft Page 22 of 31

4 How to Check the md5sum

This section introduces why do we need to check md5sum and how to check.

4.1 Why do check

Sometimes User will meet OTA Upgrade failed or even if the upgrade process is successful but The device can’t

boot into the New OS version and back to the original OS version after 7 times reboot.

If that happens, Please check the md5sum first. Check the OTA package copy to the device is correct.

If the md5sum calculated from device is different from the md5sum from artifactory server. It means the OTA

package is broken. You must remove the broken OTA package and copy it again.

4.2 How to check

Step 1: Obtain target OTA package’s md5sum by command “md5sum package_name”

The md5sum marked red calculated from device see above picture.

Step 2: Obtain the original md5sum from artifactory server where you can get the OTA package.

The marked red file in artifactory which store the original md5sum see below picture.

Step 3: Compare the md5sum between device and artifactory.

If the md5sum is same . It means the OTA package in device is no problem.

If the md5sum is different . It means the OTA package is broken.