once apon a time I rooted my phone successifuly with z4root (took just over an hour) with 2.1. The phone's OS got corrupted after two months of root. Just recently had my phone flashed at USCC. I now got ver. 2.3.4, and that id dandy, however I try to root my phone with z4root, it now fails. I have tried superoneclick anothers and those as well failed. did some additional research on how to root and I did pretty much everything. my build# is EH09. I can't figure this out, is there any suggestions?