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2 Posts

10-09-2017

Germany

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  • Registered: ‎10-09-2017
  • Location: Germany
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ThinkPad X1 Tablet 2nd Gen WWAN EM7455 no celluar reception

2017-10-09, 8:15 AM

Hello Lenovo Forum,

I have a problem with my ThinkPad X1 Tablet 2nd Gen.
My WWAN adapter (EM7455) doesn't work anymore. This one gets no more reception with different SIM cards.

The adapter was able to establish a connection for a short time, but not after a restart. I installed the latest drivers/firmware for this adapter but this did not improve. After that I reinstalled Windows once and updated the software, but this didn't change anything. The tablet is up to date in terms of UEFI/BIOS and the corresponding accessories I own.

I ask for help, as I would like to use the WWAN adapter and I will soon be referring to it.

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92 Posts

04-29-2015

United States of America

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  • Registered: ‎04-29-2015
  • Location: United States of America
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Re: ThinkPad X1 Tablet 2nd Gen WWAN EM7455 no celluar reception

2017-10-10, 3:54 AM
https://forums.lenovo.com/t5/ThinkPad-Tablets/Sierra-Wireless-EM7345-Beta-Build-4389/td-p/2193557
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