Please help my iphone 2g is freeze on apple logo his charging something and then he resets and hi is not seeing my usb or chearger what shood y do please help

help me what  shood i do my iphone 2g is freezing on apple logo is charging something and then it restarts is not seeing my usb cable or chearger  please help me

Hello c:
Welcome to Apple discussions.
Your post was hard to follow, but, for openers, very few people should EVER use terminal commands. As you have found out, you can screw a system up badly.
So much for the lecture.
OS X requires a system administrator password when anyone tries to install software that will affect the operating system. This is an Apple security feature that keeps people from, hopefully, doing dumb things to their system.
You cannot use a "friends" disk on a system that differs from your own.
Bottom line, you need to reinstall the operating system (whatever came with the system). If it is OS X 10.5, you could do an archive and install.
There is no way that I know of to undo the damage caused by entering the arcane terminal commands.
Barry

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