Modem doesnot get detected (ZBT WE826 16m)

Installing and Using OpenWrt Network and Wireless Configuration
24

Hi, I have the same problem as the org. poster. While reading the forum looking for a possible solution, I came across your comment. I've attached my dmesg output as well as opkg list & debug > usb > device output. The SIM card, ISP connection worked (out of the box) with (SimpleMobile/ T-Mobile network until I flashed the device.

Linux version 4.14.195 (builder@buildhost) (gcc version 7.5.0 (OpenWrt GCC 7.5.0 r11208-ce6496d796)) #0

I don't know if the 2 are related but I tried to install Modem Manager but it also failed. Reporting that GCC is not installed in $PATH

I also tried to update the kernel but I don't have enough storage to download the file. Thanks,... any help would be greatly appreciated....

################# dmesg

[ 0.584830] mt7620-pci 10140000.pcie: PCIE0 no card, disable it(RST&CLK)
[ 0.591337] mt7620-pci: probe of 10140000.pcie failed with error -1

[ 0.614944] rt2880_gpio 10000600.gpio: registering 24 gpios
[ 0.620341] rt2880_gpio 10000600.gpio: registering 24 irq handlers
[ 0.626751] rt2880_gpio 10000638.gpio: registering 16 gpios
[ 0.632123] rt2880_gpio 10000638.gpio: registering 16 irq handlers
[ 0.638506] rt2880_gpio 10000688.gpio: registering 1 gpios
[ 0.643798] rt2880_gpio 10000688.gpio: registering 1 irq handlers
[ 0.654622] clocksource: Switched to clocksource systick

##################### opkg list

kmod-usb-core - 4.14.195-1
kmod-usb-ehci - 4.14.195-1
kmod-usb-ohci - 4.14.195-1
kmod-usb2 - 4.14.195-1

luci-proto-ipv6 - git-20.247.75781-0d0ab01-1
luci-proto-ppp - git-20.247.75781-0d0ab01-1
luci-theme-bootstrap - git-20.247.75781-0d0ab01-1

############## cat /sys/kernel/debug/usb/devices

T: Bus=01 Lev=02 Prnt=02 Port=02 Cnt=01 Dev#= 3 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=2c7c ProdID=0125 Rev= 3.18
S: Manufacturer=Quectel
S: Product=EC25-AF
C:* #Ifs= 5 Cfg#= 1 Atr=a0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E: Ad=83(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E: Ad=85(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E: Ad=87(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=89(I) Atr=03(Int.) MxPS= 8 Ivl=32ms
E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

######################## dmesg

[ 0.000000] Linux version 4.14.195 (builder@buildhost) (gcc version 7.5.0 (OpenWrt GCC 7.5.0 r11208-ce6496d796)) #0 Sun Sep 6 16:19:39 2020
[ 0.000000] Board has DDR2
[ 0.000000] Analog PMU set to hw control
[ 0.000000] Digital PMU set to hw control
[ 0.000000] SoC Type: MediaTek MT7620A ver:2 eco:6
[ 0.000000] bootconsole [early0] enabled
[ 0.000000] CPU0 revision is: 00019650 (MIPS 24KEc)
[ 0.000000] MIPS: machine is ZBT-WE826 (16M)

25

lsusb -v could be a good idea, to see what PID and VID the devices have, and take it from there.

26

Looking good. Install kmod-usb-serial-option, kmod-usb-net-qmi-wwan and either modemanager or uqmi

2 Likes
27

Hey,
Try what bmork suggested first, it looks like everything is powered up, you are just missing the USB drivers for your modem: https://openwrt.org/docs/guide-user/network/wan/wwan/modemmanager#kernel_modules

What version of OpenWrt are you running? Based on the kernel version it looks like you are on an older version of OpenWrt. If you install 19.07 you can install these packages via opkg instead of compiling them yourself. Moreover, if you install a master snapshot you can install luci-proto-modemmanager from opkg as well.

28

Here it is..

root@OpenWrt:~# cat /sys/kernel/debug/usb/devices

T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480  MxCh= 1
B:  Alloc=  0/800 us ( 0%), #Int=  1, #Iso=  0
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1d6b ProdID=0002 Rev= 4.14
S:  Manufacturer=Linux 4.14.195 ehci_hcd
S:  Product=EHCI Host Controller
S:  SerialNumber=101c0000.ehci
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=  0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   4 Ivl=256ms

T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480  MxCh= 4
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=05e3 ProdID=0608 Rev=85.37
S:  Product=USB2.0 Hub
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   1 Ivl=256ms

T:  Bus=01 Lev=02 Prnt=02 Port=02 Cnt=01 Dev#=  3 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1bbb ProdID=0192 Rev= 2.32
S:  Manufacturer=Alcatel
S:  Product=MobileBroadBand
S:  SerialNumber=0123456789ABCDEF
C:* #Ifs= 6 Cfg#= 1 Atr=80 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=83(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=(none)
E:  Ad=85(I) Atr=03(Int.) MxPS=  16 Ivl=32ms
I:* If#= 3 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=00 Driver=(none)
I:  If#= 3 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=(none)
E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 5 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=(none)
E:  Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=125us

T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12   MxCh= 1
B:  Alloc=  0/900 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 1.10 Cls=09(hub  ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1d6b ProdID=0001 Rev= 4.14
S:  Manufacturer=Linux 4.14.195 ohci_hcd
S:  Product=Generic Platform OHCI controller
S:  SerialNumber=101c1000.ohci
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=  0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   2 Ivl=255ms
29

You need to load cdc_ether driver for that interface.
For serial interface to work you need to install kmod-usb-serial-option and add to startup
echo "1bbb 0192 ff" >/sys/bus/usb-serial/drivers/option1/new_id

bmork will correct me if I'm wrong :wink:

31

I purchased the exact same Router WE826-T2 a few months ago from China but had to replace the original EC-25 modem with Quectel EP06-E as i am in Europe, and it worked straight away without problems. It uses 'intelligent router' firmware/interface. I don't know if one can flash openwrt/luci.

32

Then you got the wrong variant of the EC-25 (US version ?). I am located in Germany, and I have various openwrt devices, incl. the WE826-T2, using the EC-25 flawlessly.

1 Like
33

For some reason, this reminded me of a great movie. Well... maybe not that great if you're into the PC shit of this millennium. But anyway, if you haven't seen it yet: Check out The Adventures of Ford Fairlane.

I wanted to post a quote from that movie but the forum enforces PC and won't allow me... So you'll just have to follow this link: https://www.imdb.com/title/tt0098987/quotes/qt0158336

And to bring this back on topic again: @AndrewZ, @biangbiangmian, @frollic, @mk24, myself and many other volunteers are happily answering OpenWrt related 3G/4G/5G questions in this forum. Just ask.

The best solutions are free. Just like the solution we gave @wanderer further up this thread.

2 Likes