Force update on gps location.

Hey. At times, my loggede devices, dosent update gps location for hours !! It would be nice, if i could force the system, to tell me where it is !! I know that on Samsung devices, i can "ask" the device where it is, but this (samsung) system also tells the user that i have "asked" that question ! (thats not very smart, if the device has been stolen, or as in this case, monitoring the device).
(Pro user, monitoring 3 devices)