You can update it from the provided latest version ( 5.2.0 ), then initially download eMMCDL Flash Tool V5.2.0.
Multiple Link for eMMC DL Tool V5.2.0 Download1.eMMC DL V5.2.0 In that case, if you have any question and problem in the new update process here. If you also want to install eMMC-DL software setup on your laptop/PC.