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I'm new in RPi, so can't resolve an problem. How can I fix a Raspberry Pi with Rainbow screen? I'm using Raspberry Pi 3 B with Raspian 10 (show below)

Linux raspberrypi 5.10.103-v7+ #1529 SMP Tue Mar 8 12:21:37 GMT 2022 armv7l GNU/Linux

Boot occur correctly, I can connect via ssh normally, but on LCD display rainbow screen. I'm also using LCD Touchscreen 7inch.

I searched several forums and they talked about power supply and kernel.img. But I already checked everything and it didn't fix it.

Some forums that searching:

How I can resolve this?

Thanks

enter image description here

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  • Please edit your question and add more details about the type of display and how it's connected. Add links to the forum posts you followed and add details about the "everything" you already checked. Can you show a photo fo the "rainbow screen"?
    – Bodo
    Jun 30 at 21:58
  • Ok, question edited. Thanks! Jul 1 at 12:15
  • How did you check that the power supply is really supplying 5v0 to the pins of the Rasp Pi?
    – NomadMaker
    Jul 1 at 19:02

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