Introduction - If you have any usage issues, please Google them yourself
7279 keyboard program for 0- 9 numeric keys, A- F function key boot-up at the highest digital display P the first time by the number keys at the highest bit display data, the 2nd according to the number keys in the second digital display data. . . . . . 8th Press the number keys at the lowest bit display data 9th Press the number keys at the highest bit display data. . . . . . Press any function key while the system back to initial state.