As a point , when you shutdown the system , after a while , the cpu got too hot !
This "feature" should be the same on FA images. "Poweroff" is driven by
http://linux-sunxi.org/AR100 and this is not very well documented feature and is not working properly on a mainline kernel yet. There was some success recently, but it is not properly tested nor implemented yet."power off" is not a real power off since this board does not have a proper PMU chip.
Second point is that although usb to serial converter was supported but XR819 wifi failed to connect to the AP.
Known problem. This chip is shit - we have done what was possible - and connecting to your AP remains dependent on luck.
https://forum.armbian.com/topic/6441-or ... ment=49058https://forum.armbian.com/search/?&q=xr819https://forum.armbian.com/search/?&q=xradioThird point is CPU runs on max clock and it is dangerous .
That should not occur but even it runs that should not be a problem since max. clock supported by this chip is not enabled yet - as a safety feature. DVFS is not working properly yet. On all 4.x kernels.
Please provide an output of
too see if there is anything extraordinary going on.
why kernel compiling due to the instruction on the wiki returns error ? even u-boot returns error.
We and many people are compiling kernel every single day. There are no issues whatsoever. Are you sure you have followed instructions? Are you running Ubuntu Xenial on an amd64 host? This is the only way.
In case you run into troubles, you need to explain them in details and attach logs, found in output/debug
Here:
https://forum.armbian.com/forum/4-development/