MEDIATEK LinkIt Smart 7688 Developer's Manual page 70

If there is a downloading error (see below), remove the cached .json file. The location of the cached
.json file is the same as the location of the preferences.txt file. It can be found in the Arduino IDE
under the File menu by clicking Preferences.
There should now be a LinkIt Smart 7688 item appearing in the boards list on the Boards
5)
Manager as shown in Figure 47. Click the LinkIt Smart 7688 version button to select the
latest and click Install.
The installation completes, as shown in Figure 48.
6)
This document contains information that is proprietary to MediaTek Inc.
Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
Error downloading the LinkIt ONE SDK package
Figure 47 LinkIt Smart 7688 Board Package Menu
© 2015, 2016 MediaTek Inc.
MediaTek LinkIt™ Smart 7688 Developer's Guide
Page 70