I got a "problem" (?) with my Raspberry Pi Zero W ; I don't know if it's a real problem or if it's a normal case, then I would ask you before doing bad things...
My Pi has a USB hub plugged into the USB data port, and a power supply plugged into USB power port.
The hub is powered by another power supply.
When I unplug the power supply, the Pi stays "alive". It's always powered by the USB data port.
Is it normal ? Are there any risks ?
télécharger gratuitement images