我觉得最有效的方法3 B$ m& l& D; ]9 |3 f$ {4 N4 A# w
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- Insert SIM into none smartphone mobile phone( l7 z' p5 j. Q5 ], N
- Select phone book memory to 'SIM Card Only' + Q/ q7 W7 G4 D& N0 m- Either delete all contacts or move SIM contacts to phone memory `+ V3 U/ c* j2 z' L8 h( c
- SIM card should be empty at this point5 u. W5 n6 S; p6 U
- Pop SIM back in to Pre