I appreciate you sharing the thorough and simple solution. When using Android as a 4G modem via USB for a Raspberry Pi 4, I also ran into this "Charging Only" issue and spent hours trying to figure out why. Few people realize how important it is to turn off USB autosuspend, which makes the connection much more reliable when using the device.
Statistics: Posted by grannygame — Mon Jul 21, 2025 6:55 am