Unhappy [Q] Huawei Ascend g600 U8950N-51

Hi. I bought an ascend g600 in Australia. I changed fonts with rom toolbox, but now my phone doesn't work. I need rom stock of this phone, but huawei doesn't release it. So has someone my same phone to extract UPDATE.APP to send to me? thank you. Or is there another solutions? (sorry for my bad english, i'm italian )