[SOLVED] ODROID-XU4 USB 3.0 not working

by **karog** » Wed Oct 14, 2015 7:20 am

I got an odroid-xu4 last week and have it running arch linux off the emmc. Everything seems to be working well except USB 3.0.

ODROID-XU4 USB 3.0 ports (both): USB 3.0 devices do NOT work; USB 2.0 devices do work
USB 2.0 to SATA adapter: HDD, SSD show up in /dev/sdX; dmesg shows activity
USB 3.0 to SATA adapter: HDD spins up, HDD, SSD fail to show in /dev/sdX; no dmesg activity at all
USB 3.0 flash drives: fail to show in /dev/sdX and their LEDs never flash; no dmesg activity at all

ODROID-XU4 USB 2.0 port: USB 3.0 devices work though at HIGH SPEED rather than SUPER SPEED of course
USB 3.0 to SATA adapter: HDD, SDD show up in /dev/sdX; dmesg shows activity
USB 3.0 flash drives: show up in /dev/sda; dmesg shows activity

Note that the USB 3.0 to SATA adapter works in the USB 2.0 port but not the USB 3.0 port

All of these devices and adapters work in the USB 3.0 ports on my hackintosh.

Do I have a bad XU4?

Or are there some USB 3.0 drivers I need to install? I searched via pacman but found nothing.

Does anyone else with an XU4 have this problem? Any ideas? Thanks.

by **gripped** » Thu Oct 15, 2015 3:44 am

$this->bbcode_second_pass_quote('', 'D')oes anyone else with an XU4 have this problem? Any ideas? Thanks.

by **karog** » Thu Oct 15, 2015 3:46 am

$this->bbcode_second_pass_quote('gripped', '')$this->bbcode_second_pass_quote('', 'D')oes anyone else with an XU4 have this problem? Any ideas? Thanks.

by **gripped** » Thu Oct 15, 2015 3:48 am

No idea really. It could be something else entirely :)
I'm just telling you what I've seen.

by **karog** » Thu Oct 15, 2015 3:57 am

$this->bbcode_second_pass_quote('gripped', 'N')o idea really. It could be something else entirely :)
I'm just telling you what I've seen.

by **karog** » Thu Oct 15, 2015 3:27 pm

The problem was the the contacts on the USB 3.0 ports. Apparently this has happened a number of times on brand new ODROIDs.

Thanks to a hint from gripped above, I found the link: http://forum.odroid.com/viewtopic.php?f ... 302#p99467

USB 2.0 has 4 pins, ground, +5V, data in , and data out.

USB 3.0 adds 5 more pins which are 5 little pads right at the edge of the connector. These are the pads that were a problem and why USB 2.0 could work on the same port.

See the odroid link above for how to clean them. It is really easy. Of course, this should not happen on brand new machines.

by **gripped** » Thu Oct 15, 2015 6:45 pm

Glad you got it sorted.

If I'd have been in the same boat "clean the contacts" would probably not be the first thing to spring to mind.