Why reboot a few seconds after shutdown and how to solve it and my wifi is also too slow

i am using DB410c and there are a lot of problem
first one is wi-fi…wi-fi is not working properly it is too slow but i am able to access internet through ethernet cable… how to fix the wi-fi problem
second one is DB410c reboot after 5 sec i don’t want this feature
and the last one is i am not able to set chromium proxy here is the link and it was working fine in my second DB410 board but not in first one Configure Proxy for Chromium and Google Chrome From Command Line

Which OS/release are you running ?

How slow is it ? could you try iperf, or simply download big file on the Internet with *wget *and report the average download speed ?

Could you please also provide the AP signal level you have:

iw wlan0 link

Is it related to : Why reboot a few seconds after shutdown? - #15 by m375

Which solution are you using in the link you provided, command line method or ‘Proxy SwitchyOmega’?

I usually set the system proxies by changing environment variables:

 export http_proxy=http://[proxy]:[port]
 export https_proxy=http://[proxy]:[port]

Then you can run chromium.

i am using debian buster
Actually if i talk about DB410c wi-fi …at this time wi-fi networks are not visible i don’t know what is the real issue…
yes it is related wid Why reboot a few seconds after shutdown? but i dont what the explanation i want the real solution and i am using debian buster

i am using this method #You can also set an alias. Edit .bashrc file
and one more issue is now i am trying to connect my mobile with DB410c but when i typed hcitool dev and hcitool scan there is no devices info

i am new on DB410c and seriously want to say one thing i am getting frustrated now

I strongly suggest you to use the latest release:
https://releases.linaro.org/96boards/dragonboard410c/linaro/debian/latest/

In brief, the board is designed to automatically boot when power is applied.

There is an existing patches for the LK bootloader [1] which ‘enables’ shutdown, but for reasons invoked by Bjorn [2] and since it modifies the default Dragonboard behavior, patch has not been accepted.

I tested this patch on my side and it seems to work as ‘expected’. You can rebuild LK by your own or download my binary [3] (not official and provided without any guarantee).

fastboot flash aboot ./aboot_shutdown.mbn

[1] https://bugs.96boards.org/show_bug.cgi?id=121#c9
[2] Why reboot a few seconds after shutdown? - #17 by m375
[3] https://fileserver.linaro.org/owncloud/index.php/s/KWVXg8EF6g7UhcF