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04-23-2019

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Windows 10 MC7700 Hardware Switch Off

2020-02-15, 16:41 PM

This is partially related to my other thread over this card. By using AT!PCOFFEN=2 the card now powers on and works perfectly within Ubuntu. In windows,I can see that there is signal on the cellular connection,but I cannot do anything with it because windows still complains that the Hardware switch is off and skylight complains that it is Off as well. My laptop does not have a switch for WWAN and installing the software for the hotkeys or access Connections does not give an option to turn on or off the WWAN antenna. Just gives me the option for Wifi and Bluetooth.

 

Here is a link for the other thread if you want to read it. https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T/MC7354-on-T520-Main-Problem-Solved-No-LTE-however/td-p/4646984

 

This is the PC!INFO? output which shows the W_DISABLE line is set low and disabled, but windows still thinks there is a hardware switch off. LPM force flags - W_DISABLE:0, User:0, Temp:0, Volt:0, Auth:0
W_DISABLE: 0
Poweroff mode: 2
LPM Persistent: 0

 

Here are some outputs from netsh mbn commands in powershell

netsh mbn>show signal interface=Cellular

Signal information for interface Cellular:
-----------------------------------------------
Signal : 77%
RSSI / RSCP : 24 (-65 dBm)
Error Rate : 0
Rssi interval : 30
Rssi threshold : 5

netsh mbn>show radionterface=Cellular
The following command was not found: show radionterface=Cellular.
netsh mbn>show radio interface=Cellular

Radio state information for interface Cellular:
-------------------------------------
Hardware radio state : Off
Software radio state : On

netsh mbn>show connection interface=Cellular

Connection information for interface Cellular:
-------------------------------------
Interface State : Connected
Register State : Home
Register Mode : Automatic
Provider Name : AT&T
Provider Id : 310410
Provider Data Class : LTE
Number of connections : 1

Serial number #1
Connection Id : 124
Access Point Name : broadband

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12458 Posts

06-06-2011

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Re: Windows 10 MC7700 Hardware Switch Off

2020-02-15, 18:57 PM
Nobody knows your laptop model. Don't they? ) How will the forum members give an advice in that case?

Is the Wireless WAN port enabled in the BIOS Setup?
What's the output of the following commands?
AT+CFUN=?
AT+CFUN?



x220 • Gobi 2000 3g | hdd, msata ssd, wwan, wifi, gps -- unique hand-made config
ThinkPad 25 Special Anniversary Edition. #retro. Signed by D.Hill
T470p | X1 Carbon Gen3 | Miix 2 10" | Yoga Tablet 2-1050F (Android) + BT Keyboard
ThinkPad Stack • 2.4/5 Wireless Router, HDD 1 TB, BT Speaker, Power Bank, Mobile Projector

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Re: Windows 10 MC7700 Hardware Switch Off

2020-02-15, 19:17 PM

My bad. Actually, through a lot of research, I discovered that Windows 10 1903 has a severe bug regarding Sierra MC modules among others. I had to toggle airplane mode on and off to get it to actually turn on. My laptop is a Thinkpad T520.

 

I got it to connect in Windows 10 now, but only at HSPA. In ubuntu, it did connect to LTE. How can I switch it to connect to LTE in windows either through software or AT commands?

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Re: Windows 10 MC7700 Hardware Switch Off

2020-02-15, 20:20 PM
T520 has hw radio switch on the laptop side (have a look at your 1st post above).

The network mode setting (preferable mode and the method of choosing that) should be saved in the modem settings upon it's performed, disregarding the OS loaded. I explained a bit the network mode choosing under Windows OS in the thread you've linked here. Linux or 3rd party tools allow to set that settings. Another way is to choose network type and frequency band by AT commands. There is a lot of commands for that.
If you need simple set LTE as a preferable network type:
AT!SELRAT=? ##returns available networks
AT!SELRAT? ##returns current network type
AT!SELRAT=X ##set preferable network type(s), X - is a number from the list above

Or use 3rd party tool Mobile Broadband SMS Toolkit
http://support.black-it.eu/en/products/mobile%20broadband%20sms%20toolkit/index.htm

It doesn't need to be installed, just launch it, press Ctrl+D for debug window, make a selection



x220 • Gobi 2000 3g | hdd, msata ssd, wwan, wifi, gps -- unique hand-made config
ThinkPad 25 Special Anniversary Edition. #retro. Signed by D.Hill
T470p | X1 Carbon Gen3 | Miix 2 10" | Yoga Tablet 2-1050F (Android) + BT Keyboard
ThinkPad Stack • 2.4/5 Wireless Router, HDD 1 TB, BT Speaker, Power Bank, Mobile Projector

Do it well, worse becomes itself

Communities:   English    Deutsche    Español    Portugues    Русскоязычное    Česká    Slovenská    Українська   Moto English

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Re: Windows 10 MC7700 Hardware Switch Off

2020-02-17, 16:38 PM

So I am going to go ahead and consider this solved. The main issue that I can determine lies within Windows 10 1903+. The MBSMS Tool makes no difference in connecting to LTE, and it seemly connects to LTE whenever it wants to, and Windows autoupdated the MC7700 driver to the latest version, and it broke it working on Windows 10.

 

From what research I have done, Sierra Wireless MC modules are currently broke on Windows 10 1903+. Time to switch back to Ubuntu.

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