we design a board which use ti's platform:omap4460+TWL6032,now we have five pieces board ,however the component or board(which were the same batch)were all the same ,we only have two pieces of them can booting from the usb(1)(other were not working) .at beginning the uart3 can out some unstable information of the kernel,but some times late ,this two board only can booting from the usb(1),but don't out anything from the uart3, during this time ,I doubt it may be the soldering arouse this problem ,so I use the heat gun to heat the omap 4460 chip ,after doing this ,the result is all the same ,uart3 not working which can out nothing,it can booting from usb(1),too.please help me ,thanks very much!
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