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asteele

2S no HDMI output

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Hello,

 

I'm trying to get Android running on my board. I flashed Android 12 using Balena Etcher to the microSD card, then inserted the card and plugged the board in.
Nothing happened other than the red power light appearing.

I have a monitor plugged in via HDMI, and a wireless keyboard + mouse. Power is from the DC input jack.
I also tried removing the microSD card & powering on, but that also didn't do anything. 

When the microSD card is removed and I plug the USB-C into my computer, I see this the D & E drives:
image.png
but when the card is inserted, nothing changes on my computer.

I inserted the microSD card into my computer directly, and this is what that looks like:
image.png

 

 

I don't know where to go from here, as nothing I do seems to have any effect. 

 

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hello @asteele

it's likely that you're using an inadequate power supply that's not providng enough power to the board. the partitions seem correct though

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another thing to check is whether the jumper's attached or not -- if it's attached the board stays in maskrom mode 

tb2_qsg_05.jpg

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On 3/30/2023 at 2:39 AM, tooz said:

hello @asteele

it's likely that you're using an inadequate power supply that's not providng enough power to the board. the partitions seem correct though

The power supply I'm using is Output: 19V @ 3.42A, 65.0W

That seems plenty, to me, based on the spec sheet.

 

On 3/30/2023 at 11:26 PM, tooz said:

another thing to check is whether the jumper's attached or not -- if it's attached the board stays in maskrom mode 

My jumper looks like this:
image.png

Which I believe means it's disabled.

 

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hello @asteele

does the issue persist if you're using other monitors? with the information provided, the other solution i can think of for now is to re-burn the sd card (or get another sd card to burn even) does the board work ok with emmc?

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14 hours ago, tooz said:

hello @asteele

does the issue persist if you're using other monitors?

Hello,

I have tried two different types of monitors, yes. Both externally powered. Both via HDMI, though.

Quote

with the information provided, the other solution i can think of for now is to re-burn the sd card (or get another sd card to burn even) does the board work ok with emmc?

No, when I remove the SD card I also get no display or any kind of information out of the eemc.
I can get another SD card and see if that makes a difference.

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@tooz I tried with a new SD card but that did not change anything.

I did figure out the problem, though.

I was flashing the image "Tinker_Board-Android12-v0.0.3-20221002.img".
When I tried using "Tinker_Board_2-Android11-v2.0.8-20220503.img", it booted correctly and worked as expected.

 

Thanks for your help troubleshooting.

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