I just bought 2x 32GB Micro SDCards (100MB/s Read, 90MB/s Write) and tried flashing the ARMv7 RaspiOS onto them for both of my 2 Raspberry Pi 4B 8GBs. This is working as intended. But as soon as I'm trying to use e.g. the ARM64 one nothing works. For the first seconds the green LED is blinking and the red LED is red as usual. But after that the green blinking stops and the red LED is the only one which is turned on. I tried flashing it with the Raspi Imager, Balena Etcher and manually doing it. Nothing worked. I already tried doing some research but I didn't find anything helpful at all.

Sincerely, Elias aka Northernside.

  • what's showing on the monitor? where did you get the "ARM64" image?
    – Bravo
    Nov 28 '21 at 8:21

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