If you follow this procedure you should get back to normal:
2.1 Forced Upgrade
The forced upgrade method is as follows:
Note: After the forced upgrade, all user data(contacts, text messages, and multimedia messages) will be lost.
1. Go to
Support - Huawei Device Co., Ltd.. and search for the latest U8150 version, download it to the local drive, and uncompress it to extract the upgrade file.
2. In the SD card root directory, create a new folder named dload. Take the extracted upgrade file, UPDATE.APP, and copy it to the dloadfolder.
3. Insert the SD card into the mobile phone.
4. When the mobile phone is powered off, press the Volume +, End, and Power keys at the same time to initiate the forced upgrade.
5. After the upgrade is complete, restart the phone, and continue to use as before.
This is from the FAQ's Manual.
You require the Software Download from Huawei labelled:
(U8150V100R001C127B818SPO5) When you Download to your comp, Open it as instructed above.
I have a MicroSD card adapter which enables me to connect by USB. You take your MicroSD card and insert in the adapter - then plug into your comp. It's recognized as Removeable Disc X (X being an Alpha assigned to it) Mine shows as F.
This Download is 93MB.
Best of Luck. Neil.