We would like to be able to give you guidelines for the proper care of the cell device in your possession, but ALL are different! There is just no simple way to have every device react in the same manner, It can be a very complicated exercise in which you will find our expertise invaluable. Several programs are available that have the ability to remotely destroy the contents of the mobile device, and these have to be protected against.....it's important!
The two basic methods for isolating the phone from radio communication and preventing these problems are to Turn (the) device off at the point of seizure or to Place (the) device in a shielded container/bag [Faraday Bag - we can supply one to you]. Alternatively, if the device has an Airplane Mode function, the setting could be enabled ]. Each method has certain drawbacks, however.
-Turning off the phone may activate authentication codes (e.g., SIM PIN and/or handset security codes), which are then required to gain access to the device, complicating acquisition and delaying examination.
-Keeping the phone on, but radio isolated, hastens battery life due to increased power consumption as it tries unsuccessfully to connect to a network, raising its signal strength to the maximum. After some period, failure to connect to the network may cause certain phones to reset or clear network data that otherwise would be useful if recovered. Containers attenuate the radio signal, but not necessarily eliminate it completely, allowing the possibility of communications being established with a cell tower, if in its immediate vicinity. The risk of improperly sealing the radio isolation container and unknowingly allowing access to the cell network also exists.
-Enabling Airplane Mode requires interaction with the phone via the keypad, which poses some risk – less so, if the technician is familiar with the device in question and documents the actions taken (e.g., on paper or on video).