My Raspberry Pi 4 apparently doesn't read any SD cards and won't boot into the system. It blinks 7 to 8 times (I'm not sure of the exact number, as it's very fast and I can't count).
The power supply is generic, but it has never presented any problems, and it and the Raspberry Pi have only been used twice, just to boot and test, nothing more.
Another thing I noticed: connecting anything to the USB should apparently power the connected device. However, this doesn't happen.
I also plugged in an HDMI monitor and there was no signal, even without the card plugged in (I think some kind of screen should appear in that case, right?).
The power supply is generic, but it has never presented any problems, and it and the Raspberry Pi have only been used twice, just to boot and test, nothing more.
Another thing I noticed: connecting anything to the USB should apparently power the connected device. However, this doesn't happen.
I also plugged in an HDMI monitor and there was no signal, even without the card plugged in (I think some kind of screen should appear in that case, right?).
Statistics: Posted by paulo101977 — Mon Nov 24, 2025 12:57 am