I bought the tk102 tracker and configured it as directed.
apn123456 zap.vivo.com.br vivo vivo
adminip123456 188.8.131.52 20157
In gps trace, I have registered the phone and the imei, however it seems that the gps site is not receiving the coordinates, but when it activates the sms mode of the tracker it sends correctly.
Do you think I might be doing something wrong?