Troubleshooting • PI Zero 2 W doesn't boot - sicking at rainbow screen

Hello everyone,

I'm having some trouble with my Pi zero 2 W ... I have now set up a PI 5, which is running perfectly. The PI zero just won't start.

• I have two SD cards with 128 GB
• for the setup I use Rasperry PI Imager under Mac OS
• I have tried the latest PI OS Lite and full as a system
• I have two different WLANs (different SSID and passwords), I have tried to set up both via the Imager

With all attempts I only get so far:

• The LED flashes (7 times, Pause, 7 times ...)
• If I connect a screen before starting, a rainbow pattern appears
• nothing is displayed in the router, it does not seem to connect to the WLAN
• no difference between Lite and full or even the legacy versions that I have tried in the meantime.
• Even the two cards

(one no-name and one Sandisk) make no difference.
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To narrow down the error, I inserted the SD card that I prepared for the PI zero into my PI 5 and started it under the same conditions as possible:

• same power supply (of course a different - USB-C - cable)
• same screen (also a different cable here)

The PI 5 booted immediately from the SD card, displayed a perfect image on the screen and connected to the WLAN ... After a short time I was able to connect via SSH.

Then I put the card back into the PI zero, reconnected the cable and for minutes only the Regebogen screen appeared.

I have found this article: https://elinux.org/R-Pi_Troubleshooting ... ash_screen
I'm not sure if this refers to Raspery PI OS at all, but adding to the config.txt didn't help either.

I would be grateful for any advice on what else I can try. I have of course already searched for this, but have not found any specific instructions.

Statistics: Posted by florianr — Wed Jan 01, 2025 5:10 pm — Replies 0 — Views 4

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