The Raspberry Pi forums show many posts with troubled users having issues with their poor quality SD cards.

SD Card quality - Unfortunately cheap and 'No name' SD cards are a false economy.

Remove power, take the SD card out, push it back in and try again.

Re-seat your SD card: If your SD card isn't quite pushed in properly, the Raspberry Pi may show some lights but it won't be working properly.

Power Supply - The new Raspberry Pi 4 needs more power than previous models - we only recommend the official 5.1V 3A power supply.

Download the latest operating system from the Raspberry Pi website.

Grab a pre-installed MicroSD card from our store.

This will also need to be a fresh install, not one used with a previous model of Raspberry Pi.

Operating System - Only the latest operating system release will work on the new Raspberry Pi 4.

The connector on the left marked 'HDMI0' is the primary display, so you'll need to ensure this one is always plugged in.

Wrong HDMI port - The Raspberry Pi 4 has two HDMI ports (seen below).All Raspberry Pis are tested before they leave the factory in Wales, so a faulty Raspberry Pi is quite rare!īelow are the most common reasons for a Raspberry Pi 4 not to work as expected.

Berryboot zero install fail