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Raspberry Pi 4 4GB wont display anything
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Raspberry Pi 4 4GB wont display anything

by TAT_IT on Thu May 06, 2021 11:30 am

I ordered a 2GB and a 4GB model in the same order (#2539085-3688559313)

I was able to connect the official power adapter and a micro-hdmi to hdmi cable to the 2GB model and was able to boot up and see a picture, even without a boot device plugged in.

I did not have the same success with the 4GB model. I tried with a microSD and a USB drive as boot drive, as well as no boot drive. No display in any case. I tried both HDMI0 and HDMI1 ports, just to confirm.

Nothing on the board appears to be damaged in any way.

Please advise.

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Re: Raspberry Pi 4 4GB wont display anything

by adafruit_support_carter on Thu May 06, 2021 12:15 pm

Try this quick test. Remove power. Remove the SD card. Reapply power. Describe what the green LED does.

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Re: Raspberry Pi 4 4GB wont display anything

by TAT_IT on Fri May 07, 2021 2:01 pm

The green light blinks 4 quick pulses, then dark for a second, then repeats.

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Re: Raspberry Pi 4 4GB wont display anything

by adafruit_support_carter on Fri May 07, 2021 5:29 pm

OK, that much is expected behavior at least.

Is the HDMI adapter, cable, and display the same as being used with the other Pi?

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Re: Raspberry Pi 4 4GB wont display anything

by TAT_IT on Fri May 07, 2021 5:34 pm

Yes. Same video cable, power adapter and TV used for both Pi's

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Re: Raspberry Pi 4 4GB wont display anything

by TAT_IT on Mon May 10, 2021 11:46 am

Thoughts? I am in a bit of a time pinch to get this system operational.

Can I get authorized for an exchange?

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Re: Raspberry Pi 4 4GB wont display anything

by adafruit_support_carter on Mon May 10, 2021 12:01 pm

Can you please post about this issue in the Raspberry Pi forums here:
https://www.raspberrypi.org/forums/viewforum.php?f=28

It's very weird that the board is indicating it is OK via the LED blink codes, but getting nothing on HDMI. It will be helpful and interesting to see what the Pi folks might be able to suggest.

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Re: Raspberry Pi 4 4GB wont display anything

by TAT_IT on Mon May 10, 2021 12:14 pm

Can I just get a refund? I am already way over budget on time for this project.

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Re: Raspberry Pi 4 4GB wont display anything

by adafruit_support_carter on Wed May 12, 2021 12:50 pm

Let's just replace it. Send an email to support@adafruit.com with a link to this thread and your order number and they can send you a replacement Pi 4.

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Please be positive and constructive with your questions and comments.