Confirmed: Raspberry Pi 4 Has A Design Flaw In Its USB-C Port

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The Raspberry Pi Foundation recently announced Raspberry Pi 4, its latest powerful mini-computer with a USB type-C port. It was the first Raspberry Pi SBC with a USB type-C port and the foundation has today admitted that the port has a faulty design.

The flaw was revealed by Tyler Ward, a blogger who posts about electronics and other things. In his blog post, he disclosed that Raspberry Pi 4 has an incorrect detection circuity on the Pi end of the USB connection. Many users also complained that the Pi 4 is not working with all USB-C cables.

The Raspberry Pi Foundation released a schematic of the board which reveals that it has a missing CC resistor which makes sophisticated chargers like Macbook’s type-C charger non-compatible with the board.

While basic USB-C cables deploy a single CC line which detects the right amount of current required by the Pi to power the device, the electronically marked cables use two CC connections which make them non-compatible with Raspberry Pi 4. When connected to an electronically marked USB-C cable, the SBC detects the cable as an audio accessory and doesn’t power the device.

If you’re facing an issue with the type-C port of your Raspberry Pi 4, you can use a basic or non-e-marked cable to power it.

The Raspberry Pi foundation has confirmed to TechRepublic that this flaw will be fixed in a future board revision but no fixed date has been provided for it.

Also Read: Kali Linux For Raspberry Pi 4 Now Officially Released
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Anmol Sachdeva

Anmol is a tech journalist who handles reportage of cybersecurity and Apple and OnePlus devices at Fossbytes. He's an ambivert who is striving hard to appease existential crisis by eating, writing, and scrolling through memes.

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