Global Cache uses primarily online literature to provide guidance and support for their products. The following are links to all of their support information:
Text WIFI set-up tutorial: http://www.globalcache.com/support/wifitutorial/
Literature downloads: http://www.globalcache.com/downloads/
User Forums: https://globalcache.zendesk.com/forums
Video guide to setting up iTach WIFI: https://go.bluevolt.com/bedrock/CourseDetail/Global-Cach%c3%a9-Setting-up-an-iTach-WiFi-Device/26216
Video guide to using iLearn utility: https://go.bluevolt.com/bedrock/CourseDetail/Global-Cach%c3%a9-Using-the-iLearn-IR-Learner-Utility/26215