Automatic Firmware update over the Air - uFOTA

uFOTA is a managed and automated FOTA service based on WM2M protocol by u-blox. This service is able to manage the upgrading of multiple modules to new firmware version with one campaign.

Recommendations:

• uFOTA campaign shall only be planned, if the USB connect LPWA devices are ensured to have a proper power supply while the update is conducted.

• If the devices are battery powered, be aware that the uFOTA will shorten the battery lifetime.

• The update of individual devices might take up to 20min.

• Devices shall check for FW updates once per day (AT+UFOTACONF=2,86400)

• FW updates will consume data volume from your data plan.

Remark:

• By default-setting, the devices are configured not support regular uFOTA update checks.

• Exelonix GmbH can not grant warranty on devices that conducted a uFOTA campaign.

Immediate uFOTA on individual Devices

Version & Profile Check

Check if you have installed the latest firmware. And the version number should now be higher than L0.0.00.00.05.08 [Apr 17 2019 19:34:02]

>  ATI

Manufacturer: u-blox
Model: SARA-R410M-02B
Revision: L0.0.00.00.05.08 [Apr 17 2019 19:34:02]
SVN: 03
IMEI: 352753098853359

OK

uFOT requires Vodafone Global Roaming" profile (197), therefore check if the "Vodafone Global Roaming" profile (197) is present and has version 7.2, otherwise contact: info@exelonix.com

>  AT+UMNOPROF=,1

OK

>  AT+UMNOPROF=?

+UMNOPROF:

0: SW default

1: SIM ICCID select

2: ATT 7.1

6: China Telecom 7.0

31: DT 7.0

8: Sprint 7.0

100: Standard Europe 7.0

4: Telstra 7.0

21: TELUS 7.0

5: TMO 7.0

19: Vodafone 7.0

3: Verizon 7.0

197: Vodafone-global-roaming 7.2

OK

uFOTA Preparation

Execute the following commands:

>  ATI

Manufacturer: u-blox
Model: SARA-R410M-02B
Revision: L0.0.00.00.05.08 [Apr 17 2019 19:34:02]
SVN: 03
IMEI: 352753098853359

OK

>  ATI9

L0.0.00.00.05.08,A.02.04

OK

>  AT+COPS?

+COPS: 0,0,"262 02 DATA ONLY",9

OK

> AT+CGDCONT?

+CGDCONT: 1,"IP","vgesace.nb.iot","10.254.46.22",0,0,0,0

OK

Activate uFOTA (must return +UFOTACONF: 1, 1)

> AT+UFOTACONF=1

+UFOTACONF: 1, 1

OK

For immediate uFOTA update: set the Timer to one update check per hour (AT+UFOTACONF=2,3600).

Shorter timers <20min are not recommended, since URC may not be presented correctly or you may experience problems with the LWM2M client.

After the uFOTA update, set the update timing back:

• to one update check per day: AT+UFOTACONF=2,86400 or

• deactivate uFOTA (recommended): AT+UFOTACONF=2,-1

How to specify a campaign (automated updates on multiple USB Connect LPWA devices)

Devices need to be configured to check for FW updates (i.e. once per day: AT+UFOTACONF=2,86400), otherwise a campaign of firmware updates is not possible.

The following information is required to be sent to ublox:

• The product type: USB Connect LPWA (SARA-R410-02B)

• Old FW version: L0.0.00.00.05.08 please specify

• New FW version: L0.0.00.00.05.?? please specify

• The IMEI list of the device participating in the campaign:please specify

• The MNO provider: Vodafone

•  The location area: please specify

•  The requested schedule (date, time, duration) for the campaign: please specify

To initiate a uFOTA campaign (roll-out of new Firmware) send the information to support_eu@u-blox.com.

Remark:

• After the confirmed start of the campaign, do not disconnect the power supply of the devices before the update has been carried out.