Qq transmission assistant SMS transmission failed.

Hello, I'm glad to solve the possible network problems for you. Network delay. Please wait a moment, and then continue the transmission. The second kind. QQ version problem, please upgrade QQ version to do this. I'm glad to answer it for you. I hope it helps you. Because the security level of file transfer is too high, it can be corrected again before processing. The steps are as follows: 1. Select login QQ directly on the computer desktop. 2. Next, continue to find the graphic location, and click "Settings" to jump. 3. At this point, you need to browse the file transfer. 4. This will determine that the security level is low, so the requirements for opening QQ Settings-Security Settings-File Transfer Settings are low, as shown below.