Couldn't write data to stream: '__bootloader' (X_LINK_ERROR)

henry0987

Setup: Oak-D Pro W PoE <--> Network Switch <--> Jetson.

I am attempting to take a picture via a python script. However, it appears that my Oak is not exiting BOOTLOADER mode. These are the errors I'm seeing:

[depthai] [warning] Monitor thread (device: 1844301051E8E1F400 [192.168.10.11]) - ping was missed, closing the device connection

192.168.10.11: Error - Couldn't write data to stream: '__bootloader' (X_LINK_ERROR)

Interestingly, this same code works perfectly fine on my laptop, but when I run the code on the Jetson, I get these errors. Note: the Jetson can communicate with the Oak perfectly fine--pings are great. The script can find the Oak.

I believe that, for some reason, the Oak cannot get out of BOOTLOADER mode. Have you seen this before? Any idea what's happening?

Thanks.

OskarSonc

Hey @henry0987 ,

Did you follow this Jetson setup end-to-end?
https://docs.luxonis.com/hardware/platform/deploy/to-jetson

If it still fails, it’s usually network (port 11490 blocked, switch/EEE issue), Jetson NIC settings, outdated bootloader, or not enough PoE power.

henry0987

Hi @OskarSonc

Yes, I've followed the Jetson setup end-to-end. I've also verified that port 11490 is not blocked, the bootloader is up to date, and there is sufficient PoE power. Possibly a switch issue, but hard to tell. Note that I can, from code, flash the factory bootloader, so some communication is working.

henry0987

Note that this issue is solved--it was due to a VLAN offloading issue.

OskarSonc

henry0987

Glad you solved it — thanks for sharing!