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mandolin
Paper Tape
Posts: 3
Registered: ‎04-16-2017
Location: HK
Views: 1,481
Message 1 of 9

help!!x270 (20HNCTO1WW) cannot recognize em7455 wwan card...

my system software is win10 enterprise 64bit

all drivers has been installed...

but sytem cannot detect em7455 in device manager...!!

 

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Community SeniorMod
Community SeniorMod
Posts: 11,882
Registered: ‎06-06-2011
Location: RU
Views: 1,451
Message 2 of 9

Re: help!!x270 (20HNCTO1WW) cannot recognize em7455 wwan card...

Hello and welcome

Did you install modem on the photo yourself?



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

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mandolin
Paper Tape
Posts: 3
Registered: ‎04-16-2017
Location: HK
Views: 1,441
Message 3 of 9

Re: help!!x270 (20HNCTO1WW) cannot recognize em7455 wwan card...

yes....

mandolin
Paper Tape
Posts: 3
Registered: ‎04-16-2017
Location: HK
Views: 1,428
Message 4 of 9

Re: help!!x270 (20HNCTO1WW) cannot recognize em7455 wwan card...

can u tell me why?

Community SeniorMod
Community SeniorMod
Posts: 11,882
Registered: ‎06-06-2011
Location: RU
Views: 1,401
Message 5 of 9

Re: help!!x270 (20HNCTO1WW) cannot recognize em7455 wwan card...

There is a lot of threads in the forum with the same issue.

Read the post below, there are questions and advices. Let me know about results.

https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/X1-Yoga-Sierra-EM7455-SIM-Cards-Not-Being-Det...



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

weiwei
Paper Tape
Posts: 3
Registered: ‎04-17-2017
Location: CN
Views: 1,348
Message 6 of 9

Re: help!!x270 (20HNCTO1WW) cannot recognize em7455 wwan card...

i met the same issue...just like this one..

https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T/T470-WWAN-card/td-p/3631589

 

do what u said...no use

 

still cannot find em7455 in device manager....

 

Community SuperMod
Community SuperMod
Posts: 4,581
Registered: ‎04-25-2008
Location: US
Views: 1,338
Message 7 of 9

Re: help!!x270 (20HNCTO1WW) cannot recognize em7455 wwan card...

Hi weiwei, Please describe in detail your installation process, and the diagnostic steps you have been through. This will help the community help you!

I don't work for Lenovo. I'm a crazy volunteer!
toxmost
Paper Tape
Posts: 5
Registered: ‎06-02-2015
Location: New York
Views: 1,288
Message 8 of 9

Re: help!!x270 (20HNCTO1WW) cannot recognize em7455 wwan card...

This modem ( if you not buy this from Lenovo official) not detected in laptop to BIOS level (vid - pid not recognized in white list). Lenovo integrate White list to BIOS - if you buy modem (or Wi-Fi) not from lenevo - you cant see this devise (not powered device).

Lenovo Staff
Lenovo Staff
Posts: 288
Registered: ‎11-28-2007
Location: US
Views: 1,144
Message 9 of 9

Re: help!!x270 (20HNCTO1WW) cannot recognize em7455 wwan card...

The card in the picture is for X260 systems, not X270.

The card you need is FRU 01AX746.

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