Flint 3 (GL-BE9300) Discussion Thread

harrisc · July 29, 2026, 5:01am

My Flint 3 is running at about 70 degrees C and the fan is not running. I understand that this is normal. I would like the fan to start at a much lower temperature; eg 55 deg C

Is there a commend to set the fan starting temperature?
If I cannot set the fan starting temperature, can I turn the fan on always at a set speed?

Thanks

brunocerq · July 29, 2026, 8:13am

@harrisc

In GUI go to “Overview” section, than on “CPU Average Load” click on the Fan icon, adjust the slider with the temp threshold you wish for the fan to kick in.

harrisc · July 29, 2026, 8:16am

Thanks

It was set at 75 degrees. I have set it at the lowest which is 70 degrees, but I would like to set it lower if possible! Any suggestions?

thoughtcrimes · July 29, 2026, 9:39am

I use 2 fans, slow spinning, to cool the flint and they keep the router at a max temp of 46 degrees at a room temp of 27.

harrisc · July 29, 2026, 12:23pm

I am currently using an external fan to keep the router cooler. While this works I thought that the internal fan may be more efficient.

I think one may be able to control the fan t} start at a lower temperature by use of SSH commands. If anyone knows appropriate commands, please let me know

skywizard · July 30, 2026, 1:24am

I am experimenting with failover on the Flint 3 on the 4.10.0 beta and trying to use a mobile broadband LTE USB stick.

It is a Huawei E3372 connected to the USB port (of course) but I see in Overview page/ external storage no device is detected. While that says "External Storage" Should I see the USB stick recognised there (Changing the port to USB 3.0 makes no difference)?

I also do not see any alternative connection for the internet on the Internet page.

So does that mean the USB stick I am using is not compatible with the FLINT 3? I guess it does?
Is there a setting somewhere I am missing?

I see that Gl.iNet does have a LTE USB stick but I am unsure if that is compatible with the Australian Mobile data network (with a suitable Australian SIM).

SIMPoYo uFi (SP-N150C4) Plug & Play 4G USB Dongle with Hotspot - Unavailable in US/CA Region

I suppose I could use the MUDI 7 but that costs more than both my FLINT 3s and I do not have a need for a travel router.

So, is there a list of compatible LTE USB sticks somewhere?

Thanks.

will.qiu · July 30, 2026, 10:33am

The corresponding commands are:

uci set glfan.globals.temperature=60
uci commit
/etc/init.d/gl_fan restart

Please note that we do not recommend doing this. The minimum fan temperature threshold of 70°C already provides a good balance.

Lowering the threshold further may cause the fan to run more frequently and could potentially reduce its lifespan.

will.qiu · July 30, 2026, 10:36am

Hi,

You can find the list of compatible LTE USB sticks here:

There are many variants of the Huawei E3372, so please make sure the one you purchase is included in the supported list. Also, some variants may only work properly with certain firmware versions:

No, the LTE USB stick connection status will not be displayed here.

You may try switching the Huawei E3372 to HiLink mode and test again. It should then be detected as Tethering.

skywizard · July 30, 2026, 10:39pm

Thanks for the link that is just what I needed and after reading the doco I see the step I was missing was to boot/reboot with the USB stick connected, then I could see it as "Tethering".

I now have the issue of a duplicate IP. The Huawei E3372 has a default IP of 192.168.8.1 too, so I have to change that. I have found a GitHub on how to do that but have yet to apply that (I do not have time right now) and try it and research further to see if there is an easier way to do to change the Huawei E3372 default IP.

Thanks again.

harrisc · July 31, 2026, 12:49am

Thanks.

These commands worked and the fan is running at a lower temperature

skywizard · August 3, 2026, 1:11am