APAD 幾點疑難待解

各位ching,小妹有一部二手APAD,是Rockchip 2808 Android 1.5 個款,都係用來睇下片同上網。六百元買番來未滿兩個月,有些問題求救!

(1) 部機常自己熄機,我覺得係個開關(側邊個粒)鬆咗(因我high一high佢都會熄)部機話有保養,但我去到29X商場,間野已拉閘!唔知有無ching知便度有得整?先達個啲有無?幾錢度?

(2)點解有啲app一開就話[xxxx強制關閉]? 有時上上下網都會咁...

(3)部機開始剛到手時,可以係browser上到hotmail,而家連login個版都load唔到,我咩都無搞過,點解咁嘅?

Thanks!!