New software update are online at autel's website for the TS401. Just a note I tried to install updates on a windows 8.1 machine and it will not see the TS401. According to their site, it says use XP, 2000, or Vista. I installed software on an XP machine and it updated with no issues.
Mine is brand new have not even used it and I am sending it back, if is this hard to update and you can't get support from Autel, it's junk. Better off buying a Snap On, at least you have quality and a good know product. This is why it is so cheap, because it is junk.
When you run Maxilink, you need to select the TPMS tab and then select TS401. It is defaulted to a scanner when you start the program. There is an updated version 2.42 on auteltech website that includes some 2014 models
Will this update work on windows 8.1? I have had an issue with updating as well. I do not agree with a previous statement mentioned above as " this is junk .". The shop I work at has Snap-on scanners and tpms tools. But everyne wants to use my ts401 or my maxisys pro. Sorry Snap-on. Maxisys does way more and is a more complete tool. I do wish there was better access to support as this is a very mauch complained problem. I even talked my Dad in this tools (which owns a very prosperous mobile diadnostic repair business and teaches diagnostics ) but has complained about the support for the tool issues. All scanners have weak areas. I have used so many different scanners ( including dealer )and found this aftermarket one the most complete and close to! dealer operations.
You can update on windows 8.1. you have to disable the signature driver then install the software supplied with the tpms download update pack and install. You can find how to disable the signature driver by google search. Hope this helps. Did for me !