Brand New Raspberry Pi 4b (4Gb) with Sandisk 64 Gb Micro Sd Card and Genuine Raspberry USB C Power Supply (Brand New).
I have installed various versions of Volumio (2.873, 2.917, 3.008, 3.163, 3.179 and Volumiobuster 3.083) and none install correctly. In each case, I end up with the Raspberry Pi giving me four slow flashes followed by four fast flashes.
Tried e-mailing Volumio directly - no response
I have tried most of the workarounds suggested in the forums, which are within my capabilities.
Have you connected anything to rPi besides the PSU, if so remove everything? It looks like the PSU is not providing enough power.
try to connect a screen to the rPi, so you can see if there are errors.
As last resort try to boot an official raspberry distro, to see if it will boot. If this also fails,
check if you have another PSU* for the pi, if this fails too I am afraid that the rPi is broken.
*I know there have been a batch official PSU’s that delivered 4.8 V instead of 5.0V
When booting from an SD card, the Raspberry Pi’s green ACT light should have an irregular blink. However, it can blink in a more regulated manner to indicate a problem:
3 flashes: start.elf not found
4 flashes: start.elf cannot launch, so it’s probably corrupted. Alternatively, the card is not correctly inserted, or card slot is not working.
7 flashes: kernel.img not found
8 flashes: SDRAM not recognized. In this case, your SDRAM is probably damaged, or the bootcode.bin or start.elf is unreadable.