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3 Posts

09-10-2016

Poland

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  • Message 1 of 5

X1 Carbon and Sierra EM7345 problem with Mobile Broadband

2016-09-12, 15:38 PM

Hi,

 

I am running Windows 7 PRO on Carbon X1 and I have a constant “disconnection” problem with the modem.

 

Current firmware is FIH7160_V1.1_MODEM_01.1349.12 – this is shown in the Intel MBIM Firmware Updater.


I downloaded latest Lenovo driver for my X1 Carbon, Windows 7 PRO from Lenovo www and installed it.


Then I opened Intel MBIM Firmware Updater as I want to change firmware to V1.2
Loaded FIH7160_V1.2_WW_01.1522.02_NAND_Generic.flz.
It went OK.
When I pressed “Update Firmware” there is answer:
ERROR: Firmware v1522.02 is not intended for this model of the device”.

 

I tried with other firmware versions, eg:
FIH7160_V1.2_WW_01.1415.07_NAND.flz
FIH7160_V1.2_WW_01.1415.09_NAND.flz
FIH7160_V1.2_WW_01.1442.07_NAND_Generic.flz

behave exactly the same

 

I need to upgrade firmware to 1.2 as I have a constant “disconnection” problem with EM7345.

thanks
Bud

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3 Posts

09-12-2016

United States of America

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  • Message 2 of 5

Re: X1 Carbon and Sierra EM7345 problem with Mobile Broadband

2016-09-12, 20:54 PM

We have this problem too and we think that it extends to our Intel Wireless adapter as well.

 

We've reproduced this issue on multiple Windows 10 X1 (Yoga) Thinkpads with up-to-date drivers.

 

We're currently testing further by going to Device Manager > Network Adapters > Power Management (tab) and then unchecking "Allow the computer to turn off this device to save power" for both wireless adapters (Sierra LTE and Intel).

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3 Posts

09-10-2016

Poland

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  • Registered: ‎09-10-2016
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  • Message 3 of 5

Re: X1 Carbon and Sierra EM7345 problem with Mobile Broadband

2016-09-13, 11:14 AM
Hi, thanks for the answer.
I checked it is not workinig at all after unchecking "power safe" boxes.

In fact I asked for help to upgrade new firmware for the modem.
As I read firmware 1.1 causing a lot of problem and 1.2 should help.
Can anyone help how to upgrade firmware aa in first message above?
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39 Posts

07-25-2014

Germany

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Re: X1 Carbon and Sierra EM7345 problem with Mobile Broadband

2019-02-05, 12:39 PM

Hi,

 

 I have the same issue with FW v1.1 and Win 7 pro on T440s.

 

Any solutions available in meanwhile?

 

Cheers

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39 Posts

07-25-2014

Germany

52 Signins

428 Page Views

  • Posts: 39
  • Registered: ‎07-25-2014
  • Location: Germany
  • Views: 428
  • Message 5 of 5

Re: X1 Carbon and Sierra EM7345 problem with Mobile Broadband

2019-02-09, 1:25 AM

This solution worked on Win7:

 

https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/X1-carbon-2nd-gen-wwan-problem/m-p/4056291#M84787

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