Abstract: Systems and methods for assembling a mobile cellular device do not require screws or adhesives, allowing for more efficient and less wasteful rework of the device when needed. In an embodiment, one or more fixed lock elements are attached to one a screen assembly of the device (or the device housing) and a locking shaft is retained in the housing (or the screen assembly). The locking shaft includes blocking sections that block passage of the lock elements, and non-blocking sections that permit passage of at least part of each lock element. In this way, when the screen assembly is mated to the housing, each lock element aligns with and at least partially passes over one of the non-blocking sections, such that when the locking shaft is slid axially, the lock elements align with and are retained by the blocking sections.

Abstract: Systems and methods for assembling a mobile cellular device do not require screws or adhesives, allowing for more efficient and less wasteful rework of the device when needed. In an embodiment, one or more fixed lock elements are attached to one a screen assembly of the device (or the device housing) and a locking shaft is retained in the housing (or the screen assembly). The locking shaft includes blocking sections that block passage of the lock elements, and non-blocking sections that permit passage of at least part of each lock element. In this way, when the screen assembly is mated to the housing, each lock element aligns with and at least partially passes over one of the non-blocking sections, such that when the locking shaft is slid axially, the lock elements align with and are retained by the blocking sections.

Abstract: An apparatus for securing a memory module or SIM within an electronic device includes an external control (such as a volume control, camera button, or power button) that hides the memory module and/or SIM. When attached to the electronic device, the external control is disposed at the entrance of a cavity in which the memory module and/or SIM is located. The external control may be attached to a tray that holds one or more SIM cards and/or SD cards.

Abstract: An apparatus for securing a memory module or SIM within an electronic device includes an external control (such as a volume control, camera button, or power button) that hides the memory module and/or SIM. When attached to the electronic device, the external control is disposed at the entrance of a cavity in which the memory module and/or SIM is located. The external control may be attached to a tray that holds one or more SIM cards and/or SD cards.