What is GPS Week Rollover?
GPS receivers translate date and time into day/month/year/time of day format. The field that contains the week number is a 10-bit binary number. This limits the range of the week number to 0 – 1023 (or 1024 total weeks). GPS week zero began January 6, 1980. The 1024 week counter first rolled over on August 21, 1999. The next time the counter will reach week 1023 and rollover to zero is this month, on April 6, 2019.
Will GPS Week Rollover Affect My Device?
Most devices are not affected. Enter your information in the form below and it will tell you if your device is affected. Only apply this patch if your Magellan RoadMate is not functioning correctly. Only apply this patch to the device with the serial number entered in the form below. Applying this patch to a device other than the device with the serial number entered could damage the device.