Force a firmware update (Version 2)

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 immediately, 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 code to demonstrate how to force an immediate 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.
  • deviceModelName—The model number of the device you want to get the firmware info for.
  • salesCode—The consumer software customization code for the device carrier. This was previously called carrierCodeon Knox E-FOTA v1. The sales code is information obtained from the device.
  • targetFirmwareVersion—The target firmware version to update on to the device.
    NOTE—To force an update to the latest version available, set to Latest.
  • networkType—The IT admin can set the network type for when the device will accept the push update.
    NOTE—If set to "WIFIONLY" and the device is on a cellular network, the device will ignore the push force update until device connects to Wi-Fi
  • deviceList—Device list of up to 100 devices for each API call. Contains serialNumber.
  • serialNumber—An 11 digit Samsung device serial number. The serial number is information obtained from the device.

You encode this info into REST API calls to the Knox E-FOTA server, and also in the Knox API call setAllowedFotaVersion( ), which sets the highest allowed firmware version on a device.

For details about each of these elements, see the API reference for Knox E-FOTA v2's forceUpdate.


Below is a sample request that pushes a force update to a device list of 3 devices, to be pushed while the device is connected to any network.

We've set the target firmware version to the following:

  • ap_version (PDA version)—G739FXXU0APE3
  • csc_version (Phone/Modem version)—G739FOXA0NPE3
  • cp_version (CP version)—G930FXXU1DQB1

<B2bForceUpdateVO> <mdmId>d1e2f3g4h5</mdmId> <customerId>EEEE4444-FF55-AA66-BB77-CCCCCC888888</customerId> <license>EFOTA1-fff555-ggg666-hh77</license> <deviceModelName>GT-S8500AA</deviceModelName> <salesCode>QA4</salesCode> <targetFirmwareVersion>G739FXXU0APE3/G739FOXA0NPE3/G739FXXU0APE3</targetFirmwareVersion> <networkType>ANY</networkType> <deviceList> <serialNumber>C08900518981610</serialNumber> <serialNumber>C78987898789878</serialNumber> <serialNumber>C11111111111111</serialNumber> </deviceList> </B2bForceUpdateVO>


If the API call is successful, the Knox E-FOTA server returns HTTP/1.1 200 OK with these XML elements in the body:

<B2bForceUpdateVO> <forceUpdateId>12310180309-JEA12345678</forceUpdateId> </B2bForceUpdateVO>

The forceUpdateId is valid for 3 months and can be used with the API calls: forceUpdateDetail and forceUpdateSummary to obtain additional force update details.

For details about each of these elements, see the API reference for Knox E-FOTA v2's forceUpdate.

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