I can’t access the system via http://homeassistant.local:8123.
If http://homeassistant.local:8123 doesn't work, try http://homeassistant:8123. If that does not help, you may be abl...
Green LED on Home Assistant Yellow flashes 4 times short and 5 times long
Symptom
You have a Home Assistant Yellow with a Compute Module 4 and the green LED flashes 4 times short and 5 times ...
Using the serial console on Home Assistant Yellow for debugging (Windows)
Connecting to Yellow via serial console can be helpful for troubleshooting. For example, if you need to export a log ...
Using the serial console on Home Assistant Yellow for debugging (Linux/macOS)
Connecting to Yellow via serial console can be helpful for troubleshooting. For example, if you need to export a log ...
Can I reset Home Assistant Yellow?
Yes. To clear all user data as well as Home Assistant Core, Home Assistant Supervisor, and any installed add-ons from...
Reinstall the Home Assistant Operating System on Raspberry Pi CM4
Note: It is very unlikely that reinstalling the Home Assistant Operating System is necessary. Before going through th...
Disabling multiprotocol support
Step-by-step instructions on disabling multiprotocol support on Home Assistant Yellow.
Prerequisites
This guide assum...
Installation on Yellow Kit - The yellow LED keeps blinking
Symptom
During installation on a Yellow Kit, the yellow LED keeps blinking steadily.
Cause
If this LED pattern persis...
Reinstall the Home Assistant Operating System on Raspberry Pi CM5
Note: It is very unlikely that reinstalling the Home Assistant OS is necessary. Before going through this procedure, ...
Re-seating the Raspberry Pi Compute Module 4 on Home Assistant Yellow
Prerequisites
Home Assistant Yellow with Compute Module installed, powered off
Flat nose pliers
Opening the case
S...
I lost the original power supply of Home Assistant Yellow. What type do I need to get?
The Home Assistant Yellow uses a 12 V DC, 2 A, center-positive power supply. 5.5 mm * 2.1 mm DC barrel connector.
If...
Re-seating the Raspberry Pi Compute Module 5 on Home Assistant Yellow
Prerequisites
Home Assistant Yellow with Compute Module installed, powered off
Flat nose pliers
Notice
Risk of dama...
I forgot the owner password for the Home Assistant Yellow. How can I reset it?
If you forgot the owner's password, you need to reset the password via a terminal.
To connect a terminal using a Win...
Can I reinstall Home Assistant OS on CM4 again using the USB flash drive with the Home Assistant OS Installer for Yellow?
By default, the Raspberry Pi Compute Module 4 (CM4) tries to boot from internal eMMC before trying to boot from the U...
My Home Assistant Yellow appears broken, no LED is lighting up.
The Compute Module 4 or 5 might not be seated correctly.
Open the Yellow case and check if the green PCB (CM4 or CM5...
My Home Assistant Yellow lights up the red LED only.
Note: The resolution described below only applies to revision 1.2 and older. Starting with revision 1.3, there is no ...