[SOLVED] Is my XU4 dead?

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jalcaid001
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[SOLVED] Is my XU4 dead?

Post by jalcaid001 »

It has been working for 2+ years as a server
I did a reboot from a telnet session and never came up. Nothing on HDMI output.

What could have been wrong? IS there a way to know for sure if it's dead?

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Re: Is my XU4 dead?

Post by odroid »

Check the red and blue LED status on the board first.
The red LED must be solid on once the power source is connected.
The blue LED is solid on in the u-boot stage.
The blue LED is flashing like heartbeat once the Linux kernel is running.

Also check 5V/4A PSU output voltage if you have a DMM.

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Re: Is my XU4 dead?

Post by jalcaid001 »

I only see red LED. Blue led never comes up. Could it be an issue with the SD card, or it's HW

DMM shows 5.4 V. Unfortunately, my DMM doesn't measure the current accurately (I have same problem with other power adaptors)

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Re: Is my XU4 dead?

Post by odroid »

Flash this latest OS image to your SD card with Etcher to narrow down root causes. Also check the boot mode selection switch position too.
https://wiki.odroid.com/odroid-xu4/os_i ... e/20220522

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Re: Is my XU4 dead?

Post by jalcaid001 »

It was the boot select switch
I think it was in the middle position (nor SD, nor emmC) before I did the reboot (probably I moved it inadvertently) . Then, it never came back.
I guess the switch is only useful at boot time

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Re: Is my XU4 dead?

Post by rooted »

I've had this happen, I've also barely knocked the emmc module loose and thought my device was dead.

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