My iphone ver. is 1.0.2 and unlocked by anysim

As I wanna try to revirgin my iphone, The Mobile Terminal will be closed automatically when I type ANY 3 characters.....

it will be same even I using Putty at PC side

I have already install BSD subsys, OpenSSH

But I can successfully copy file by using WinSCP


Anyone can help?
Please

I've run into this problem before. The easiest way to resolve it is to just restore the iphone to a fresh 1.02 install and go from there. I've yet to figure out exactly what has been causing this, but whenever it does occur (and it hasn't occurred for a long time) SSH completely stops working.

Anyhow, GL, lemme know if you need any help with virgnizing.