| V2.1.219 | 1. Add some RS232 commands 
2. Add 14 Default EDID Configurations and Customized Mode 
3. Improve OSD 
4. Improve upgrade fu | Please upgrade to V2.0.195 first if your version is older than it. | 
| V2.1.206 | 1. Add Blank screen function 
2. Bugs fixed | Please upgrade to V2.0.195 first, and uncheck the "Enable to check firmware version" in Web GUI F/W UPGRADE page before upgrade from V2.0.195 to V2.1.206. | 
| V2.0.195 | 1. FPGA now can be upgraded. 
2. Fix the bugs caused by multi-RS232 Commands. 
3. Fix some compatible issues. |   |