1. Added support for TF card and hardware reset function.
2. Update the software on the basis of CAM-229 and modify the IPv6 drop problem
3. Update the software on the basis of CAM-462 to add audio enabling function, optimize intelligent function and optimize machine performance
4. AF focusing time too long issu is solved on the basis of CAM-728
5. Optimize audio quality issues
6. Siiivm-285 [4.2.1.0(28386)] Device capture is selected by default as a substream, but in fact it is still a master stream capture
7. Siiivm-287 [4.2.1.0(28386)] PPPoE is unstable
8. Siiivm-288 [4.2.1.0(28386)] N9000 on exception detection configuration turned on, and data saving failed