RF Cal Date (Radio Frequency Calibration Date): This is the date when the device was fully assembled and first powered up to calibrate its radio chips, antennas, and other sensors. This process is the final step in production to ensure all hardware is functional before packaging and shipping.
When dial *#123580*369#, it automatically goes into a page.where it shows.
Where,AP,BP,CP CSC and RF CALL
THE ABOVE INFORMATION IS REGARDING RF CALL,ITS NOT THE ACTIVSTION DATE.RATHER BE THE DATE ON WHICH WHETHER THE DEVICE IS WORKING PROPERLY OR NOT BEING CHECKED BEFORE PAKAGING AND SHIPPING BY SAMSUNG ITSELF
