GPS Week Rollover issue

Release Date: December 17, 2019

Under the influence of the phenomenon of resetting week information from GPS (rollover), some models' GPS will have incorrect date information on 3rd Nov 2019 and later or 21st Feb 2021 or later.

Target models information

Available for a countermeasure tool

A countermeasure tool is available for below Wireless WAN modules.
(EM7305/EM7355/EM7330/MC7305/MC7355)

Target models	Wireless WAN module	Affected date	Countermeasure tool
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]	EM7305 EM7355 EM7330 MC7305 MC7355	3rd Nov. 2019 and later	» Detailed information

Not available for a countermeasure tool

A countermeasure tool is not available for below Wireless WAN modules and models.
(MC7750/MC7700/MC7710/MC8355/MC8305/Gobi2000/F5521gw and JT-B1)

Target models	Wireless WAN module	Affected date	Countermeasure tool
CF-19[R/S/A/B/1/2/5/6] CF-31[A/G/J/K/M/Q/S/U/V/W/X/Y] CF-52[M/S/V] CF-53[A/C/D/E/F/G/H/J/M/S] CF-AX2L CF-C1[A/K/B/L] CF-C2A CF-D1[A/D] CF-F9KW CF-H1C CF-H2[A/B/F/G/H] CF-S9KW CF-S10C CF-SX2J CF-U1[G/J/K/Q/R] FZ-G1[A/B/C]	MC7750 MC7700 MC7710 MC8355 MC8305 Gobi2000	3rd Nov. 2019 and later	Not available
	F5521gw	21st Feb. 2021 and later
JT-B1	All models	3rd Nov. 2019 and later

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