08-12-2013 06:08 AM
I inserted a mobile broadband SIM card into the slot of my T431s, as described in the user manual. The SIM Card (EE 4G) works fine in my Huawei Mobile Wifi E589.
The Laptop is installed with WIN7 64bit Professional and all WIN7 updates are installed.
I gave the laptop to our IT department, who called Lenovo Helpdesk and we got the reply that they can give us a brand new image of the harddisk which MAY fix it. Our IT department as well as myself tried everything including the obvious such as access connections. The WIFI module in access connections is greyed out. It seems that the SIM Card is not recognised. We tried also SIM cards from different providers, which do not work.
Having just spent some time installing my programmes and files, I am reluctant to have the whole laptop wiped and re-imaged and thought I wait until others have the same problem and there may b a fix available
Looked around in the community and the problem does not seem to be known (yet)
Solved! Go to Solution.
08-12-2013 06:39 AM
08-12-2013 02:13 PM
Te laptop comes with WWAN, at least that is what it says on the website of the re-seller where we got it from.
also the lenovo specs clearly say that it comes with WWAN.
The laptop also contained a "dummy" SIM, which made us belive that SIM funcitonality is present
08-12-2013 06:01 PM
OK, its looks like your T431s should have some with an Ericcson N5321 WWAN card.
Does an Ericcson WWAN adapter show up under Network Adapters in Windows Device manager?
If it does, is the device driver for the adapter enabled? Also is the device driver version 220.127.116.11?
08-12-2013 11:49 PM
So, I checked that, and there are only four devices:
Intel 82579 Gigabit Network Adapter
Intel Centrino Advanced N6235
Microsoft Virtual WIFI Miniport Adapter
Microsoft Virtual WIFI Miniport Adapter #2
No signs of an Ericcson N5321 (or any other) WWAN Card.
I will see if I can find the driver and will update on this
08-13-2013 01:22 AM
I checked now in "Control Panel">>Programs and Features">> Mobile Broadband Drivers" that the correct driver (i.e. v18.104.22.168) was installed. (It seems that my colleague from the IT Dept had installed it yesterday).
Yet, it does not appear on the Network Adapter list.
08-13-2013 01:46 AM
I don't have a T431s so I can't tell you specifically what to do next, but you might want to:
08-13-2013 03:22 AM
The T431 does not have any (physical) wireless switch (unlike the X300 which I had before).
I also went into the BIOS menu and there is nothing to set.
This is how the Access connections tab looks like
Thanks for your help
08-13-2013 04:19 AM
Access Conections wont show an active WWAN icon if it can't find the card.
If you are feeling adventurous, you might want to download the Hardware Maintenance Manual and open up your T431s toi see if the really is a WWAN card inside.
08-14-2013 11:09 AM
thanks for all the replies.
I got a bit further now: Lenovo logged on remotely, and they confirmed that there is a WWAN Card built in (all UK T431s come with WWAN) . When they tested further they suspected that the card was faulty and sent a new one. It arrived 24 hours later and we replaced the faulty card (confirming that there was indeed a WWAN Card built in).
The new card now works.
The only disappointment is that they said on the phone the replacement WWAN card would support 3G and 4G. When I tested my 4G SIM, it achieved a paltry 1.5 Gbit at lunchtime and 3 GBit download in the afternoon, which is a poor performance for a top business Laptop. The properties window confirmed HSPA+ as the maximum speed. I will now remove the SIM and put it back in my Huawei MIFI where it can do up to 40 (!) Gbit download. At least the defective WWAN is now fixed.
Lenovo has really to give me an explanation why this WWAN is such a poor performer.