RPi 400 doesn't appear to start

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rjp96
 
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RPi 400 doesn't appear to start

Post by rjp96 »

I received a RPi 400 kit yesterday, and it does not display anything on the monitor. The power light flashes green briefly, but regularly, with about a second between flashes.

So far, I have-

1) Tried it on several different monitors
2) Modified the config.txt file
3) tried reinstalling the OS, on multiple different micro sd cards (including the pre-installed one from the kit) using Raspberry Pi Imager. This also included trying several different OS's through the imager.
4) Using a different micro HDMI to hdmi cable

Any help would be appreciated. This is supposed to be a birthday present to my cousin early next month.

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dastels
 
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Re: RPi 400 doesn't appear to start

Post by dastels »

Have a look at https://learn.adafruit.com/raspberry-pi ... leshooting, if you haven't.

Dave

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rjp96
 
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Re: RPi 400 doesn't appear to start

Post by rjp96 »

Hi Dave,

I've taken a look through the troubleshooting guide. I guess one think I am confused about are the flash codes. What does it mean if it is consistently blinking green, with no discernable pattern? Otherwise, I've swapped out all the hardware I can, and modified the config file in the way they suggested, with no success.
https://www.raspberrypi.com/documentati ... lash-codes

Thanks,
rjp96

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dastels
 
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Re: RPi 400 doesn't appear to start

Post by dastels »

"Randomly" blinking with no pattern would indicate that I's working and accessing the SD card happily.

If the blinking is a repeating pattern of long blinks followed by short blinks, there's an error and the blink pattern will indicate what the error is.

Dave

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rjp96
 
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Re: RPi 400 doesn't appear to start

Post by rjp96 »

It is an extremely regular blink, flashing briefly about every second. It continues blinking like this even when the SD card is removed as well.

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dastels
 
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Re: RPi 400 doesn't appear to start

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And it matches none of the documented error patterns?

Dave

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rjp96
 
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Re: RPi 400 doesn't appear to start

Post by rjp96 »

That appears to be the case. The troubleshooting guide states that "In most cases, the pattern will repeat after a 2 second gap.", however, there is no gap. It just blinks briefly every second, in perpetuity. There isn't even a gap every 10 blinks, which is the longest specified in the guide.

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dastels
 
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Re: RPi 400 doesn't appear to start

Post by dastels »

OK, sounds DOA.

I'd authorize a replacement for you, but there is a general shortage of Raspberry Pis. Due to that we may only be able to offer refunds or store credit.

But it's worth a try. Please email [email protected] with a link to this thread, your order number, and request the replacement of one Raspberry Pi 400. Also indicate if you'd prefer a refund or store credit in the event a replacement isn't possible.

Dave

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