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Power, no boot

brumbaugh

Hi,

 

Im new to the Raspberry Pi arena, but have built PC's and done quite a bit with PC's.

 

I have a Pi4, which I bought the 7" touchscreen display for it.

 

I installed everything. I have power, but no boot. I cannot even get any thing out of the monitor.

 

Any ideas.

 

- touch screen is connected via ribbon cable.

- both the Pi and the display have power and the power supply is rated to handle both.

- red LED is lit...

- SD card is in and has a copy of NOOBS on it.

 

Display is dead...

 

Any ideas? Display or OS?

 

Thanks,

Kyle

Parents

  • The only things I can think of are to make sure the ribbon cables are seated properly with their clamping bars also seated properly, and to make sure there is adequate voltage and current available to run the Pi and the display...

    My setup which is only a Pi 3 and 7" display complains about the power if I don't use a high capacity power supply with an 18 gage cable.

    Also some people have trouble with their SD cards, some cards (even new cards and cards that work on other computers) don't seem to work.

    It is strange how few web sites have updated their material to indicate that the 7" display is compatible with the Pi 4.

    Here is one site that goes through it...

    https://www.softprayog.in/tutorials/connecting-7-touchscreen-display-to-raspberry-pi-4b

Reply

  • The only things I can think of are to make sure the ribbon cables are seated properly with their clamping bars also seated properly, and to make sure there is adequate voltage and current available to run the Pi and the display...

    My setup which is only a Pi 3 and 7" display complains about the power if I don't use a high capacity power supply with an 18 gage cable.

    Also some people have trouble with their SD cards, some cards (even new cards and cards that work on other computers) don't seem to work.

    It is strange how few web sites have updated their material to indicate that the 7" display is compatible with the Pi 4.

    Here is one site that goes through it...

    https://www.softprayog.in/tutorials/connecting-7-touchscreen-display-to-raspberry-pi-4b

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