Reliability is a very important aspect of a mobile device. There are a lot of aspect of things which need to be considered deeply. Easy use and strong reliablity will expand the usable space of a mobile device.
To make a prototype of mobile device reliable is very difficult, for a prototype of a mobile always has many vulnerable points. The fisrt thing one need to do find the vulnerable points. There should be many ways to do so, for example, heavy black Box Test, White Box Hardware and Souce Code Browse and Analysis, Severe Condition Test, ETC.
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I believe That There Are A Lot of Things to do.
