Just got my hands on a TK102 GPS/GSM tracker. Seems to accept the SIM card ok, but any message I send to it, the only response is "fail!". If I enter "begin123456", the message that comes back is "fail!". Same for "check123456", "imei123456", "tracker123456", etc.
If I call the tracker and hang up, the following message comes back:
lat: long: speed: Lac:1bc2 aa52
My question is: how can I get the tracker to initialize? Any help is greatly appreciated. [8D]