I have searched widely for the answer- found the question many times- but never the solution. This tracker is a just received lightweight replacement of my TK 102. I have not got/ don't want a data enabled sims- 'data upload' is off- goff# After powering on, the device does not seem to aquire a GPS fix. Both leds quickly go blank. I think it goes to sleep mode. My first position check, dw#, returns the cell tower information only. But the tracker is seen to wake and in about 2 mins. both leds go to rapid single flash. If after this 2 min. period I then text a position check, I get the google co-ordinates- but this must be done before sleep mode occurs again. So finally to the question- the TK 102 responds to interrogation by automatically sending 2 texts. The first- cell tower info, the second- the google link. Is it the case, with the Rf-16, that the user has to first force a wake up call?