Trying to use DW5808 MC7355

I’m trying to convert a DW5808 to use on my laptop as a mc7355 but I’m lost. I used the Script that dl5162 made. I ran the command sudo perl swi_setusbcomp.pl –usbcomp=14 and it seems to have changed the port to 14 as it should but I still can’t find the port. I know I need to reset the modem after running the script but I don’t know how to do that beside restarting the computer. It might just be that I don’t know which port I need to put in on putty so I can use the AT commends. Also I don’t know if I need a sim card installed for this to work or not. Here is the modem in the USB device list in Ubuntu. Thanks for the help.

T: Bus=01 Lev=02 Prnt=02 Port=04 Cnt=04 Dev#= 6 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 2
P: Vendor=413c ProdID=81a8 Rev= 0.06
S: Manufacturer=Sierra Wireless, Incorporated
S: Product=Dell Wireless 5808 Gobi™ 4G LTE Mobile Broadband Card
C: #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr=500mA
I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=
E: Ad=82(I) Atr=03(Int.) MxPS= 12 Ivl=32ms
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=
E: Ad=84(I) Atr=03(Int.) MxPS= 12 Ivl=32ms
E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I: If#= 8 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=
E: Ad=86(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=
E: Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
C:* #Ifs= 2 Cfg#= 2 Atr=e0 MxPwr=500mA
A: FirstIf#=12 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
I:* If#=12 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim
E: Ad=82(I) Atr=03(Int.) MxPS= 64 Ivl=32ms
I: If#=13 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:* If#=13 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

Hi,

You can try unplugging the modem and plugging it back in after you ran the command sudo perl swi_setusbcomp.pl –usbcomp=14
You need a sim card installed for WWAN 4G LTE Cellular Modem

Please refer to USB composition mode in https://gist.github.com/Juul/e42c5b6ec71ce11923526b36d3f1cb2c for more details.

and take look at the Linux QMI SDK Application Developer Guide on how to configure the host
https://source.sierrawireless.com/resources/airprime/software/linux-qmi-sdk-application-developer-guide-1,-d-,26/#sthash.uXzhDGRd.dpbs

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Right now I have the wwan card in the wwan slot on my laptop. Do I need to have it in a USB adapter for this to work?

Hi,

If your laptop supports wwan slot, you don’t need to have it in USB adapter.

If possible, Could you please mark “Solution” on the answer? So the community could easily find the solution for their problems.

OK I found that I needed to use comp 8, swi_setusbcomp.pl –usbcomp=8, and Now I do see the ports USB0, USB1, USB2 but now i have another problem. I tried with putty and minicom, and it will open a window when i try to connect to the com ports like ttyUSB0 but it don’t show any text and I can’t type anything in. What am I missing? is there a password or something I need to do so I can connect to the port to use AT commands?

I tired to update the firmware in Ubuntu following this website https://cloudnull.io/2018/07/x1-carbon-wan-linux-heaven/. I got it to go into download mode but it returns a error saying it doesn’t see the device after it reboots into download mode. Any help? I feel like just sending this wwan card to someone who can convert it for me.

Hi,

You can try to use Linux SDK SampleApps for Firmware_Download application
SLQS04.00.23.bin.tar [gz] 107.4MB
https://source.sierrawireless.com/resources/airprime/software/linux-qmi-sdk-software-latest/#sthash.ZzLwCETB.dpbs

Please refer to page 28 in Linux QMI SDK Application Developer Guide for more details:
5.4.5. One Command Line Firmware Downloader Sample
Application

Location: SLQSab.cd.ef /SampleApps/Firmware_Download/
Purpose: Perform a firmware download for the supported module by one command line.

If you need more information, please contact your reseller or distributor directly for technical support.

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I finally found out how to convert the Dell DW5808 to a MC7355 as well as the DW5811 to EM7455. I mainly followed the information on this website here:
https://zukota.com/sierra-wireless-em7455-how-to-make-it-work-with-an-older-lenovo-laptop/

I also used some good information on these websites as well:



Hope this helps others as well.