lpc932 failure

[raghavendra]

Dear people,
    I am using Flash Magic Ver: 1.98(DLL Ver 1.67) for programming my P89LPC932. In my device, the following letters are typed: P89LPC932B, CC4877, Tu0404G. When I programmed using Flash Magic using break detect method I was able to do 5-6 times. After that, the device is not going to ISP mode at all.What may be the problem? I am not using any reset circuit .

Please help in this regard,
 
Thanking you,
Raghavendra
India.