Q: I send dn# instruction to query V16 working state. Display: ID: 8401017954; GSM signal status: strong; GPS signals: invalid; Battery: 70%; Working pattern: AJ; Tracking: open.

　　GPS signals: invalid, is it mean GPS not work?

A: Yes, it’s mean the GPS don’t work now

1. Because the GPS is very power-hungry, so V16 is designed to position every 10 minutes, and immediately dormancy after positioning so as to save electricity, to ensure the standby 50 hours.

2. So in general, GPS is dormant, and the V16 will display GPS: invalid when use DSP query.