How to connect the MARS X to APP? Hollyland Tech December 25, 2020 10:05 Updated Find the Wi-Fi that begins with “HLD_” under your mobile device’s Wi-Fi setting. Connect to that Wi-Fi with the default Wi-Fi password or the password you changed to. Go back to the APP, and tap CONNECT on the MARS X device page. Related articles what is the MARS X wireless transmission range？ Issue: Unable to find the device Wi-Fi Mars 4K how to enter scene mode, and how to use it? Hollyview APP Connection NO VIDEO & VIDEO FREEZING & GLITCHING Comments 0 comments Article is closed for comments.