Force a firmware update (Version 1)

After registering for the Knox E-FOTA service and seeing what firmware versions are available, you are ready to update device firmware. You can either:

  • Force a firmware update within a specific time period, as described here.
  • Let devices update their firmware during their regular firmware update checks, as described in Set the allowed firmware version.

This section uses sample XML to demonstrate how to force a firmware update using Knox E-FOTA.


To force a firmware update, send an HTTP POST request to this URL:


In the body of the HTTP request, provide the following information:

  • mdmId—This identifies your company among other partners in our KPP program.
  • customerId—This identifies one of your enterprise customers that will use the Knox E-FOTA service.
  • license—This tracks customer usage of the Knox E-FOTA service for billing purposes.
    NOTE—While trying Knox E-FOTA, the development key is sent to you by email in the following format: "EFOTA1-fff555-ggg666-hh77". During commercial deployment, this license is purchased.
  • groupID—A device group identified by the enterprise IT ;admin to separate groups for different firmware updates . Upper case only, for example: ;"TEST ;GROUP".
  • deviceModelName—The model number of the device you want to get the firmware info for.
  • carrierCode—The consumer software customization code for the device carrier. The carrier code is information obtained from the device.
  • targetFirmwareVersion—The target firmware version to update on to the device.
  • deliveryStartDate—The date set by the IT admin to start pushing the update to the devices.
  • deliveryEndDate—The date set by the IT admin to finish pushing the update to the device group. Note that this can be set up to a maximum of 7 days from the start date.
  • dailyStartHour—The time set by the IT admin to start the update push each day during the update period defined by the start and end dates.
  • dailyEndHour—The time set by the IT admin to end the update push each day during the update period.

You encode this info into REST API calls to the Knox E-FOTA server, and also in the Android API call used to set the allowed firmware version on a device.

For details about each of these XML elements, see the API reference for call serverInit.


Here is a sample request to force a firmware update between July 13 and July 15, from 1 to 4 am for a group of devices named ;"Test Device Group"

We set the target firmware version to the following:

  • ap_version (PDA version)—G930FXXU1DQB3
  • csc_version (Phone/Modem version)—G930FOXA1DQB1
  • cp_version (CP version)—G930FXXU1DQB1
    <groupId>TEST DEVICE GROUP</groupId>


If the API call is successful, the Knox E-FOTA server returns HTTP/1.1 200 OK.

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