Well, I am using a Huawei C5600 and my update is fine. I wonder if it is: 1. The 9.9M storage capacity of the mobile phone itself is full: go to "My Files" - "8. Memory Card" in the menu and see if the storage capacity of the mobile phone exceeds 8M. If so, If so, there may be insufficient download space. You know, it is impossible for us to download and install all the software provided in "Yi Qi". 2. If so, go to "Yi Qi" and delete the two rarely used software first; if the storage capacity of "Mobile Phone" is less than 8M, there is an error in the update program! You need to delete the "Ai Music" software in "Software Management" in "Yi Qi", and then re-download and install "Ai Music" from "Yi Qi" - "Software Download" (it will automatically installed).

Supplement: If it really doesn’t work, I found the Huawei customer service hotline. If necessary, you can try, 8008308300 4008308300