Byd Company Limited

Jrd Communication (shenzhen) Ltd.

Jrd Communication Inc.

Jipeng Sun

Bo Peng

Aihua Li

Zaichun Li

An application upgrade method of a mobile terminal includes: acquiring an update installation package of an application required to be upgraded; modifying a unique identification of an application having a latest version; installing the application having the latest version, and generating a prompt window after a preset time for prompting whether to use the application having the latest version; if yes, controlling the application having an old version to be uninstalled and retaining the application having the latest version; and if no, controlling the application having the latest version to be uninstalled and retaining the application having the old version, when it is decided not to use the application having the latest version. A storage device and a mobile terminal are also provided.

Prompted use of an installed latest version after a preset time

Disclosed are a communication information hiding realization method and realization system. The method comprises: monitoring a communication information database for storing communication information in real time, and judging whether there is newly added communication information in the communication information database; when there is newly added communication information in the communication information database, acquiring a communication number of the newly added communication information, and comparing the communication number to a pre-set communication number set needing to be hidden; and when the communication number exists in the communication number set needing to be hidden, deleting or hiding the communication information corresponding to the communication number in the communication information database. In the present invention, by monitoring a communication information database in real time to judge whether communication information needing to be hidden is automatically deleted or hidden, communication information security is improved.

Communication information hiding realization method and realization system

A method for electroplating a substrate having an aluminum alloy surface comprises: applying a zinc layer onto the aluminum alloy surface; electroplating a first copper layer onto the zinc layer from an alkaline copper electroplating solution; electroplating a second copper layer onto the first copper layer from an acid copper electroplating solution; electroplating a Cu&#x2014;Sn alloy layer onto the second copper layer from a Cu&#x2014;Sn electroplating solution; and electroplating a chromium layer onto the Cu&#x2014;Sn alloy layer from a trivalent chromium solution. The alkaline copper electroplating solution is substantially free of cyanide ion.

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Shenzhen, China

Jipeng Sun