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Paper Tape
Posts: 7
Registered: ‎05-27-2016
Location: GB
Views: 196
Message 1 of 2

X1 Carbon EM7455 does nothing, "switched off"

I have a Carbon X1 with a cellular card - it says:

Manufacturer:       Sierra Wireless 

Model:                    Sierra Wireless EM7455 Qualcomm

Network Type:      GSM

Data Class:            UMTS, HSDPA, HSUPA, LTE

I put in a Three (UK) prepaid data SIM, and.... nothing.

It asks for APN settings.  I've put in what the Three site suggests; nothing.  Network settings persists in telling me that Cellular is "switched off", without any obvious way to switch it on.


Moderator edit: Match subject to content.

Community SeniorMod
Community SeniorMod
Posts: 12,004
Registered: ‎06-06-2011
Location: RU
Views: 173
Message 2 of 2

Re: X1 Carbon EM7455 does nothing, "switched off"


Is the modem Lenovo branded? Is it factory preinstalled? What are modem service p/n (FRU) and laptop Machine-Type?

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