BUT when I plugged the Pi into a computer through the OTG adapter (no power supply, no HDMI output, just the device itself on the USB port), it turns on??? The status LED turns on and starts flashing as it would normally during boot/disk WR. What is going on here? Because this now rules out power not going through the port at all. Something else is happening, and I can't for the life of me figure it out.
One way to test whether data is going through the port can be found here: viewtopic.php?t=395469#p2359008
For a Linux host, look in the output from lsusb for a similarly named device.
Statistics: Posted by thagrol — Wed Jan 21, 2026 12:55 am