This list will be kept up-to-date with any updates Huawei release and I will continue to mirror them on my own website.
HUAWEI_U8815_Android_2.3_V100R001C02B882_England_Vodafone_05010XJM.zip (mirror link) 216 MB MD5: C335B11C4CEC514286C31CA74A328266 (check with HashTab)
Step 1. Prepare a Micro SD card which at least has 512MB available space and make sure it can be read and write.
Step 2. Copy the entire dload folder (with update.app in it) to the root directory of the MICRO SD card.
Step 3. Make sure your handset is switched off. Insert the MICRO SD card into the handset. Press and hold the VOLUME UP key and VOLUME DOWN key simultaneously, then press the POWER key to power on the phone so all three buttons are pressed. The phone will then enter the Software Upgrade Mode.
Full instructions can be found in a PDF file located inside the ROM ZIP.