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Fanfold Paper
Posts: 2
Registered: ‎10-28-2017
Location: PA
Views: 2,459
Message 1 of 3

Sierra EM7455 WWAN card on ThinkPad X270

Good morning..

Buy a ThinkPad X270


Type of machine model: 20HNCTR1WW

and I want to put the wwam card


I have a wwan card Sierra Wireless Airprime 4G LTE WWAN Module EM7455


Lenovo PN: SW10H24567

Header Code: S1NN

FRU PN: 00JT547

EC # 243581


and I want to know if I can use it on my laptop.


if it is not compatible. is so kind to tell me that wwan cards are compatible for my laptop


thank you very much...


Retired Support Specialist
Posts: 1,803
Registered: ‎12-12-2016
Location: IN
Views: 2,433
Message 2 of 3

Re: Sierra EM7455 WWAN card on ThinkPad X270

Hi jeancarlosff,

Warm Greetings & welcome to Lenovo Community, happy to have you here.


Sierra Wireless EM7455 is compatible with ThinkPad X270 but the FRU #00JT547 that you have posted will not work with your system, as BIOS is whitelisted. 

So compatible WWAN card will be 01AX746 also you need to check whether your system is WWAN ready or not.


I hope the above information helped you.

Please feel free to post in Lenovo Community Forums if you have any further queries!


Tap that Kudos button if I helped.
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ThinkPad T440p| Intel® Core™ i5-4300M| 2.6 GHz Dual core| 8GB
Community SeniorMod
Community SeniorMod
Posts: 11,824
Registered: ‎06-06-2011
Location: RU
Views: 2,430
Message 3 of 3

Re: Sierra EM7455 WWAN card on ThinkPad X270

Let me explain.

BIOS (its whitelist for wireless devices) isn't a cause of possible issue of incompatibility as all em7455 modems with Lenovo FRU have the same hardware IDs.

Modems have different revisions. According to my tests and the forum cases, new ThinkPads, Kaby Lake generation, don't support old modem revision, TC' modem is one of them. Most likely the laptop will not recognized it as it should, no matter what is the OS.

In addition to the compatible FRU 01AX746, there is another FRU - 01AX748, as it's a substitution of the first one.

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