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53 Posts

11-22-2013

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Re: Yoga 2 13 Wireless Card Unauthorized Message

2014-10-20, 18:53 PM

You need to set the security mode to WPA2 (not WPA or WEP) for 300Mbps to work.  The lower security modes max out at 144Mbps

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11-19-2007

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Re: Yoga 2 13 Wireless Card Unauthorized Message

2014-10-21, 21:42 PM

All,

 

Still getting some additional information - we've tested some 7260 cards which also did not work even with the newer BIOS.  As we researched this further, we find that there is a specific version of the 7260 for the Yoga 2 13.

 

The one that should work with the Yoga 2 13 with BIOS  v1.08 or later is:

 

Intel

Intel 7260 2x2AC+BT PCIE M.2 WLAN SAR

20200617

 

The 20200617 part number is what you want.

 

From what I understand now, there are several ways of controlling the transmit power to the card to ensure it meets FCC and other RF emission limits.   One way is through BIOS, another is through firmware on the card.   In this case, it is the firmware on the card.  This card is SAR (specific absorbsion rate) compliant for this system.  Learn more about SAR here.  The BIOS whitelist is looking for this specific card that it knows will operate at the right limits.  Other versions of 7260 AC will be flagged as unauthorized cards.

 

As was explained to me, the output levels of cards (to meet SAR) may actually change depending on what mode the system is in and how it is oriented.    

 

I'm still working to try to find the orderable option or service part numbers that match to this number.

 

If you are looking at cards to buy elsewhere online, drawing from whoami1975's earlier pic... the p/n I'm pointing to with the arrow should be 20200617 on a card that would work.  I'm trying to get one so I can include a pic and find the orderable P/Ns (like the service FRU).

 

(NOTE - Actual card will not look like this - I was just using this as an example.  We have one on order here and I'll update this picture with the correct card once it comes in.)

 

7260 wrong card.png

 

I know there may be other ways for individuals to solve this - modded BIOS, etc.  

 

 

 

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10-20-2014

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Re: Yoga 2 13 Wireless Card Unauthorized Message

2014-10-21, 21:44 PM

/delete 

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Re: Yoga 2 13 Wireless Card Unauthorized Message

2014-10-21, 23:17 PM





Microsoft MVP Consumer Security 2006-2016 / Windows Insider MVP 2016-Present
I am not employed by Microsoft or Lenovo.

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141 Posts

07-14-2014

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Re: Yoga 2 13 Wireless Card Unauthorized Message

2014-10-22, 7:23 AM

Hi Mark,

Do you know if Lenovo is going to replace free of charge the replacement of the card?

regards

Lenovo IdeaPad YOGA 2 13; (i3 4010U, 500GB HDD + 512GB M550 M.2 SSD, 4GB ram, Intel HD4400, 1920 x 1080, Clementine)
Lenovo Flex PC Tactile 14; (I(i3 4010U, 500GB HDD + 256GB MyDigitalSSD M.2, 8GB ram, Intel HD4000 Graphics, 1366 x 768, Grey)
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265 Posts

07-04-2014

EU

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Re: Yoga 2 13 Wireless Card Unauthorized Message

2014-10-22, 8:24 AM

wrote:

 

Still getting some additional information - we've tested some 7260 cards which also did not work even with the newer BIOS.  As we researched this further, we find that there is a specific version of the 7260 for the Yoga 2 13.

  

I'm still working to try to find the orderable option or service part numbers that match to this number.

 


 

Excellent work Mark!

 

Good to see it took you only a few weeks to get this internal Lenovo product information.

 

 

If you want to learn more on SAR or antenna specs:

the FCC info on this Application is publicly available since 19/9/2014 ...

FCC reports

 

FCC SAR 7260AC Yoga2 13.jpg

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09-04-2014

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Re: Yoga 2 13 Wireless Card Unauthorized Message

2014-10-22, 8:25 AM
 

Andy

 

English Community Administrator
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8095 Posts

11-19-2007

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Re: Yoga 2 13 Wireless Card Unauthorized Message

2014-10-22, 16:14 PM

Richard,

 

Lenovo should support the system config as it shipped (depending on the individual system model and which card it shipped with)  and address any issues through service if the config does not work as designed - i.e., replace defective cards, antenaes, boards, etc under the terms and conditions of warranty as determined by support on a case by case basis.

 

Similarly, as a normal course of business, we periodically release updated drivers and make those available on the support site.   In many cases, the updated drivers may improve performance and / or address specific issues reported by customers.

 

My intent in this thread was to try to find out why some 7260 AC cards being installed by customers were not working, when I had been told that 7260 was supported after BIOS 1.08.  I was not saying that Lenovo was planning to swap 7260 for other cards as any kind of field upgrade or warranty action.    I recognized that customers may elect to make use of newer parts to retrofit older configs on their own accord (assuming compatibility) and wanted to try to aid this effort in the community.

 

The photo I borrowed (with attribution) from another member of the community and marked up with an arrow was not intended to show the card you needed, but to show the number for the SAR version. The 20200617.

 

As soon as I can get one of those cards and test it in a system here, I'll get a pic of that card as installed posted to clarify.

 

I was out of the office the week 6-10th and had to follow up when I returned.  A card was ordered while I was out and tested with several of the BIOS versions and found not to work, which led to the deeper research and subsequent understanding of the SAR version of the card and why it is controlled through the whitelist.

 

Thanks for your understanding

 

Mark

 

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05-31-2014

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Re: Yoga 2 13 Wireless Card Unauthorized Message

2014-10-22, 16:36 PM
So is there a 7260 AC card which works or there is no way to get one without the removal of the white list?
Yoga 2 13 / i5-4200U / 8GB / Crucial M550 128GB SSD + 500/16GB WD SSHD / 1080p
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07-04-2014

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Re: Yoga 2 13 Wireless Card Unauthorized Message

2014-10-22, 16:44 PM

wrote:
So is there a 7260 AC card which works or there is no way to get one without the removal of the white list?

We knew for months there was a working 7260 AC card with BIOS v 1.09

Windows hardwareID : PCI\VEN_8086&DEV_08B1&SUBSYS_C1708086&REV_6B

 
Now we know it has the exact Lenovo part number: 20200617
I guess it will take weeks before this will be available to customers.
At a price of 3 times the standard 7260 AC ...
I still think the form factor in the picture is a bit strange?
 
White listing will stay the Lenovo way to comply with regulations.
Watching the progress of the BIOS modders I have good hope the security of theYoga BIOS will be cracked the next weeks.
As for most 7260AC cards it is only 1 bit to be changed ...
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