[Q] lost phone ? help

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http://forum.xda-developers.com – i lost my phone las night . is there any way how can i track it.. i hade locatemydroid app install it .. some times it does track . but then stops. and dont track it anymore . i dont know if they turn off the phone or they took the sim card.off please if any one knows . how can i track it better. or any ideas. please help.. my phone is an htc one s runing viper ones 1.1.0 (HowTos)