I have a G300 with ICS Vodafone 4.0.3 B952, but cannot make it happen. Followed the guide step by step, even downloaded the HuaweiWinHandSet, still no joy, I'm using Win7.
What I did is:
Turn on USB debugging,
Connect phone to PC
...at the end it says "Root Failure, Check Drivers"
I tried to do this in bootloader mod, holding volume down and powering up, then it says cannot find device.
I read the cmd while it was running, was things like "more than one device or emulator"
If I connect it (just plug it in) I have in MyComputer a 3G Mobile, and 2 empty hard disks. if I select connection type multimedia device, instead of the previous three I have Huawei8815 or something, either way doesn't work.
I found another guide where you have to download the drivers and an .exe called RootG300, but cannot download, says "Network Error"
Any help would be appreciated, maybe I overlooked something, but I've been trying to root my phone now for a half day, and really wish to make it done.