On April 6, 2019 at 23:59:41 UTC, the transmitted GPS week number in the navigation message will rollover from 1023 to 0.
The problem by the rollover of April 6 does not occur in the following models.
・ SMT888-3G
・ G3100-R1
・ G3100-R2
・ G6Ni
・ G6Ti