====== XU4 and XU3-Lite have no energy sensor on board ======

So you always meet this error message in the Kernel boot process because XU4 and XU3-Lite has no INA231 sensor on the board.
<code>
[   11.229087] [c4] INA231 2-0040: I2C write error: (-6) reg: 0x0
[   11.233666] [c4] INA231 2-0040: ============= Probe INA231 Fail! : sensor_arm (0xFFFFFFFA) =============
[   11.244188] [c4] INA231 2-0041: I2C write error: (-6) reg: 0x0
[   11.249087] [c4] INA231 2-0041: ============= Probe INA231 Fail! : sensor_mem (0xFFFFFFFA) =============
[   11.259855] [c5] INA231 2-0044: I2C write error: (-6) reg: 0x0
[   11.264473] [c5] INA231 2-0044: ============= Probe INA231 Fail! : sensor_g3d (0xFFFFFFFA) =============
[   11.274430] [c5] INA231 2-0045: I2C write error: (-6) reg: 0x0
[   11.279926] [c5] INA231 2-0045: ============= Probe INA231 Fail! : sensor_kfc (0xFFFFFFFA) =============
</code>

If you don't like that annoying message, add the driver module in the black list.\\

<code> sudo nano /etc/modprobe.d/blacklist-odroid.conf </code>

Just add this line in the odroid blacklist file.\\
<code> blacklist ina231_sensor </code>

The annoying message will disappear.


====== Fix the Ethernet naming issue on Ubuntu 16.04 ====== 
If you want a traditional name of the Ethernet port eth0, follow this instruction. (Written by TeHashX forum member) \\
You can also fix the reconnection issue on router/switch rebooting.\\
[[http://forum.odroid.com/viewtopic.php?f=95&t=22760#p153422|Instruction]]

Update : Latest "sudo apt-get update && sudo apt-get upgrade && sudo apt-get dist-upgrade" fixed the issue.