Some GPS Navigators and Tracking hardware may have trouble to get GPS-FIX,
The problem is caused due to maintaining of Nasa GPS calendar's format/code, some models couldn't get position fixed since June 14, 2009. The following information is for your reference:
As opposed to the year, month, and day format of the Gregorian calendar, the GPS date is expressed as a week number and a day-of-week number. The week number is transmitted as a ten-bit field in the C/A and P navigation messages, and so it becomes zero again every 1,024 weeks (19.6 years). GPS week zero started at 00:00:00 UTC (00:00:19 TAI) on January 6 1980.
As far as we know, some trackers and navigators are affected and different brands of chipset will fix it differently. It would take time for the GPS chipset to recover from this problem by itself before June 20.
effected Benyamap Hardware: VT-100 Only
[all other hardware is Ajusted already and will work just as expected]