License key and serial number don’t work after trial download

Generally, the package uploaded to the website is supposed to work. It has been tested before it is uploaded. So, if you find the license key and serial number won’t work, it may be caused by the time of your device. If the device’s time is earlier than the StartDate in the rdk_key.txt file found in the “libs” folder of the download package, the “librdk.so” library will fail to unlock. Please check the time of your device, update if needed and try again.