请问我在用MASTERCAM XMR2的时候开始是好的过二个小时以后就会出现如下图的报警信息; g1 g+ A% o! {5 U5 N3 w3 Y( M1 O2 d
<The SIM has become disconnected & X$ d, a8 t8 u8 o, T+ M: f' c
mastercam will be automatically shut ; O) Z% K& A% Z1 p- Wyou will get one chance to saveyour> K( W& y/ n) C" k然后就自动关闭. 3 [& U" Y$ p' x" K! o那位大侠能帮帮我啊