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X240 WLAN (wifi) adapter not detected by system after WWAN adapter installed

X230 through X280, plus X390 series specific matters only
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EricRC
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X240 WLAN (wifi) adapter not detected by system after WWAN adapter installed

#1 Post by EricRC » Mon Sep 30, 2019 9:20 am

Hi, everyone

I just purchased anWWAN adapter (EM7355 FRU:04X6038) and installed it to my X240, the WWAN adapter was recognized by the system (Win7 professional 64bit) after installation and correctly displayed in "Device Management". However, the WLAN (Wifi, Intel AC7260) adapter was no longer detected in the system, therefore I have no wifi access. I logged into my BIOS--> Security -->I/O port access, the Wireless LAN turn on/off option was still there.

I’ve tried to unplug/reinsert the WLAN adapter, upgrade system BIOS, uninstall/reinstall Wireless LAN driver, all of them don’t help.

Could anyone here give me hand to address this problem?

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Last edited by EricRC on Mon Sep 30, 2019 9:20 am, edited 1 time in total.
T60p(2008-93U) Core Duo T2600 2.13GHz,2GB RAM,ATi V5200,15" UXGA display,320GB 7200RPM

onespeedbiker
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Re: X240 WLAN (wifi) adapter not detected by system after WWAN adapter installed

#2 Post by onespeedbiker » Fri Oct 04, 2019 10:51 am

Have you checked the Device Manager Other Devices for your wifi card?

jursky
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Re: X240 WLAN (wifi) adapter not detected by system after WWAN adapter installed

#3 Post by jursky » Wed Nov 20, 2019 3:56 am

I am not sure if there's an fn+combination for "hw" switching WLAN interface on and off, but if there's, I would look after that. Additionally I would try some Linux such as Ubuntu putting it on a Live CD/USB, trying if WiFi would work in that. Or me personally I would take apart the laptop, take out the card and put it back again, maybe there's a loose contact on some PIN somehow and all you have to do is to move the card a little bit.
W530 i7-3840QM (K2000M & 32GB 1600MHz RAM) with WCG (Wide Color Gamut) FHD LCD panel (model AUO B156HW01 V.4 (Matte)) and one X230 i7-3520M (with Nitrocaster mod + FHD LGD IPS LP125WF2-SPB1 (Matte) LCD panel) for travelling + PE4C in combination with Msi RTX 2060(S) Gaming X 8G.

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