Who can't install newest update?

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http://forum.xda-developers.com – I have tried this one http://forum.xda-developers.com/show...6&postcount=49 and this one http://forum.xda-developers.com/show...78&postcount=1 and it will get half way through then just stop with the android laying on his back with the red exclamation point. I'm just curious as to who all is having this problem and want to know what the problem is so when jellybean rolls out we won't have this problem again. Some people say it's because of the modified build.prop and others have installed the update without a problem. http://forum.xda-developers.com/show...53&postcount=5 I'm roo (HowTos)