You should check again if the target phone has an internet connection. CellTracker uses an internet connection to send recorded data to the server. If Cell Tracker can not send data to the server due to no internet connection, it will save recorded data to temporary files on the target phone and wait to send them again when the internet connection is available. Therefore, if your target phone has an internet connection only in some periods a day, sometimes you may feel new data updated slowly or lost.
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