After the latest Lenovo updates including BIOS 1.63 dated 2/17/2017, Targus has received reports that the Lenovo X1 Tablet host no longer working with the Targus ACA41 for USB Type-C Power Delivery. Sometimes recovery is possible by hard reset of the X1 Tablet (via pin hole button on back and under kick-stand of X1). Note, BIOS version 1.55 dated 8/10/2016 through version 1.62 appeared to function.
The issue is not specific to the Targus ACA41. See https://forums.lenovo.com/t5/ThinkPad-Tablets/Thinkpad-10-March-2017-BIOS-update-freezes-tablet/td-p/3610692 . We have also experienced intermittent issues causing inconsistent USB functionality with the X1 Tablet.
Therefore, we are recommending other USB Type-C hosts, including other Lenovo branded PC, be considered for use with Targus USB Type-C Power Delivery solutions including the Targus ACA41.
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