Showing results for 
Search instead for 
Did you mean: 
Paper Tape
Posts: 5
Registered: ‎05-17-2016
Location: US
Views: 597
Message 1 of 2

Which WWAN card do I need in a 3rd gen carbon x1?

I bought a Sierra EM7355 card for my 3rd gen Thinkpad x1 - according to


but it doesn't work when I plug it in (won't boot up). Which card do I need? Is it the EM7345?

Community SeniorMod
Community SeniorMod
Posts: 11,921
Registered: ‎06-06-2011
Location: RU
Views: 594
Message 2 of 2

Re: Which WWAN card do I need in a 3rd gen carbon x1?

Hello, genealogyxie

You are right, only Sierra em7345 (LTE/3g) and Ericsson n5321 (3g) wwan modems are compatible with x1c gen3. Note, they must have Lenovo FRU p/n, 04X6014 and 04W3842, respectively.

em7355 (Gobi 5000) isn't in the compatibility list.

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

Check out current deals!

Shop current deals

Top Kudoed Authors