Have you tried your Dongle on a Laptop/Desktop? May be it can work with these due to their integral power supply being better filtered, better regulated, and heavier in capacity. No harm in trying.
Here is the “How-to” for using the Dongle with Windows Laptop/Desktop.
How-to Install Pro Stick & DVB-T on Windows
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EDIT:
Edited title of above thread and added DVB-T in it