Please be patient and wait a few more days, the download will be released in a few days, using a completely new unlocking method.
Please carefully watch the changes in the unlocking parameters in the video, changing from 256000 (500 universe) to 512000 (1000 universe).
SL04 Boxes of any firmware version can be upgraded for free, you just need to re-download the plugin and run it then can support MA3 2.4.2.2 and unlock it.