![](http://img190.imageshack.us/img190/4896/60214472.jpg)
use a nail cutter to cut off the metal then can see then NAND ic
![](http://img406.imageshack.us/img406/6246/71672580.jpg)
i use this thig to hold the mother board when using the hot gun
![](http://img560.imageshack.us/img560/2539/65222690.jpg)
this tape for cover the pmic and audio ic, i put 5 layers
![](http://img827.imageshack.us/img827/4711/57302272.jpg)
the tools for open up ip4
![](http://img819.imageshack.us/img819/893/28898273.jpg)
hot air gun. the tempeture should not too high, and use the big head.
![](http://img847.imageshack.us/img847/5120/65553488.jpg)
the problem nand ic photo