No, rooting is not required, because the software uses various methods to bypass the root restriction to access the memory of the phone. However, it's uncertain if it supports this particular phone. I have checked the GSM Hosting forums and found out that the supported SPB models are: 6600, 6610, 6800, 6530. There is nothing related to the Huawei Y330, which means the only way to change its IMEI is with the help of a physical box.
