From the best of my memory

You need to first install the Max Link 2 software on a windows PC.
 You need to have your TS 401 charged up preferably overnight with the provided AC adapter.
 With a Virus and malware free Windows PC with a good high speed internet connection , go to the web page and download the latest TS 401   update, (This is the web link I see in USA) and unzip and save it to a folder on your desktop so you can find it.

  http://www.auteltech.com/TPMS%20Diagnostic%20&%20Service%20Tool/403.jhtml
 
  Open up the Max Link 2 program , select TPMS, select TS401.
  Turn on your TS401 and set to update mode and attach TS401 to the pc with provided USB cable.
  On  Max Link 2 Program , Select update program , Browse , find and select either the European Union( or the  USA folder) NOT BOTH, extract.
   Note After that completes , On the Max Link 2 also select update DTC.