If you have a programmer of RT809 series. Then you should use a updated loader. Today i am sharing a software link of RT 809F PROGRAMMER. Its very useful and simple in use. You connect the programmer with cable and attach it with pc. Then open your software and click on SMART IDENTIFY SMARTID. Its available on left upon side. Your Flash IC will be detected as soon as you click on it.
After it many options are there in the software. you can read your IC file and also save it. OPEN option can use for creat new software for Flash IC. Below the software link you can download it.
software for rt809f programmer download here