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Tool for Sierra's Wireless WAN GPS Week Rollover issue

Release Date: October 8, 2019
Updated: February 6, 2020

Under the influence of the phenomenon of resetting week information from GPS (rollover), Sierra module GPS will have incorrect date information on 3rd Nov 2019 and later.

Time and location information are not affected.

If the GPS date information is not used, you don't need to deal with this.

A countermeasure tool is available on the Sierra website.

 AirPrime EM/MC Series - GPS Week Rollover Tool 

(It needs a registration to download the tool.)

In the case you can not download the tool from Sierra website, please download from this site and use according to the procedure.

Target models and Firmware information

The target PCs are in below products with equipped Sierra wireless module.

Target models

  • CF-19[5/6], CF-20[A/B/C/D/E/F/G/H], CF-31[1/2/3/4/W/X/Y],
    CF-33[A/B/C/D/E/L/M/N/P/Q/V/W], CF-53[2/3/4/5/7/S], CF-54[A/B/C/D/E/F/G/H/J],
    CF-AX3E, CF-C2[C/D], CF-D1[G/K/N/Q], CF-MX4E
  • FZ-G1[A/B/C/F/J/K/L/M/N/P/Q/R/S/T/U/V/W], FZ-M1[A/C/D/F/G/J], FZ-Q1[A/C], FZ-Q2[F/G],
    FZ-A2A, FZ-B2[B/D]

* For Android products (FZ-B2, FZ-A2), please contact with Panasonic in each countries.

Firmware version and countermeasure tool

The target firmware is below.

Wireless WAN module Firmware version OS Countermeasure tool
SWI9X15C_05.xx Windows 10
Windows 8.1
Windows 7

Download ▶

Released on October 8, 2019

* Procedure to check firmware version

- On Windows 8.1 or later

  1. Push "Windows" key.
  2. "Settings" - "Network & Internet" - "Cellular" - "Advanced options"
  3. Check "Firmware:".

- On Windows 7

  1. Push "Windows" key.
  2. Right click on "Computer" and select "Manage".
  3. Click on "Device Manager" - "Modems" and right click on "Sierra Wireless WWAN Modem", select "Properties".
  4. "Diagnostics" tab, click on "Query Modem".
  5. In "Modem Information", check "Revision:" at "Response".

* In the case the firmware version is less than SWI9X15C_05.xx (e.g.SWI9X15C_04.xx), please contact with Panasonic in each countries.

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