problem flashing k800 cid 53 orange..

[stranz]

recently, i've flashed my k800 r8bf003 cid 53 orange..
the flashing went clearly without any problems..
but when i turn on the phone it says insert correct sim card..
i'm in asia region(malaysia)..
using custpack APAC..
anybody can help me??
i'm greatly confused how solve this problem..

hope anyone can show me how to solve this problem..