We’ve seen this happen with the HTC One line of Android phones. The blank screen occurs because the HTC One is designed to work with a special phone case (using the DotMatrix feature) that disables the screen when it connects to any magnetic phone mount, such as the Pearl Phone Mount.
Fortunately, you can easily disable this feature by going to Settings > Personalize > (scroll down a bit) HTC Dot View:
- Tap on HTC Dot View and you will see Dot View Themes.
- Tap on the icon next to Themes > Settings > then uncheck Turn on HTC Dot View. You will now be able to use your HTC One phone on the Pearl Phone Mount without encountering a blank screen.
Feel free to contact us if you need any additional clarification or help - and be sure to check out our related articles for more info!