I have a Pi4 that I have connected to a 7" touchscreen. The touchscreen is powered by a microUSB cable, the Pi4 is then powered through the GPIO, per the instructions. I keep getting the low power yellow lightning bolt.

Can I run the Pi4 off its own power supply through the USB-C port, and the touchscreen off its own MicroUSB port, after disconnecting the power supply to the GPIO? Or is there a better solution to fixing the low power signal?

  • 2
    You can run two separate power supplies. Just pull off the dupont wires. – Dougie Jan 17 '20 at 21:27

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.