Zyxel LTE5398-M904 disable all leds

I know this model is currently not supported properly by Openwrt
(looking forward to it being fully supported by the Openwrt project :sleepy:)

But I would like to know if it is possible to disable all the leds of the device

It currently mounts the original Zyxel firmware which, as far as I can tell, is based on an old version of Openwrt, but I can't figure out which one:

uname -a
Linux LTE5398-M904 3.10.14 #1 SMP Tue Jun 28 10:51:01 CST 2022 mips GNU/Linux

firmware version:
zycli swversion show
V1.00(ABQV.2)C0

Thanks to all who want to help me

On most devices, some LEDs are wired to the CPU, and can be controlled by software, and some LEDs are wired to other parts of the device (power, switch, ...), and cannot be controlled by software.

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ok, I understood this

Is it possible to obtain the reference Openwrt version from the kernel version on the device?

what I would try to do is:

install a kernel module for managing the leds and try to disable them with that

the /etc/opkg.conf file says (not modifys from me):

src/gz barrier_breaker http://downloads.openwrt.org/snapshots/trunk/ramips/packages
dest root /
dest ram /tmp
lists_dir ext /var/opkg-lists
option overlay_root /overlay

version kernel 3.10.14
module find in archive 3.10.49

but the kernel version is different from a kernel module found in archive:

https://archive.openwrt.org/barrier_breaker/14.07/brcm47xx/generic/packages/base/kmod-leds-gpio_3.10.49-1_brcm47xx.ipk

LTE5398-M904 LEDs are controlled by /bin/zyledctl

root@LTE5398-M904:~# /bin/zyledctl
usage: ledctl [LED_NAME] [LED_ACTION] 
LED_NAME list:
    POWER_G, INET_G, USB_W, LTE_R, LTE_O, LTE_G, WIFI, VOICE, FW_UPGRADE, RTD, LTE_MOD_RST, VOIP_MODE, VOLTE_MODE, USB_PwrCtl,
 
 LED_ACTION list:
    on, off, slow, medium, fast, superfast, upgrade.
 
 LTE module action:
    LTE_MOD_RST start
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unfortunately I had already found the command

but central LED that says internet connection does not turn off

ne the rear LEDs next to the relative rj45 connector

can you tell me something about it

Texas ranger Chuck Norris would use duck tape :wink:

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already done, but I would like to do it through the software