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X270 and EM7455

2018-04-03, 19:18 PM

Hello,

 

I recently bought an EM7455 modem and he is not detected on my laptop. So I suppose that I my card ordered on aliexpress (EM7455) isn't on whitlist...

So someone could give me a list a of good cards that will work on my laptop 20K5S1LT00 (X270 with a 6200u)

 

thanks

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3 Posts

04-03-2018

FR

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Re: X270 and EM7455

2018-04-03, 19:29 PM

I found this on levovo website : https://www.lenovoquickpick.com/twn/system/thinkpad/x-series/x270#accessory/69391

But where I could buy this ? (for shippping in france)

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12630 Posts

06-06-2011

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Re: X270 and EM7455

2018-04-03, 19:59 PM
Welcome to the Community

The em7455 card you have, seems, for SkyLake generation of ThinkPads, not a KabyLake one like x270. "Old" modem (another revision), indeed, can't be recognized in the KabyLake generation laptops.

Both em7455 generations have the same USB IDs, so not a white list causes the issue.

Compatible em7455 modem's p/ns for x270:
- FRU 01AX746, or p/n in on-line stores like lenovoquickpick 4XC0M95181, or another Lenovo p/n for factory installed modems SW10K97529. All modems with these p/ns are the same, the difference is their source, store
- FRU 01AX748, Lenovo p/n SW10K97531



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

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Re: X270 and EM7455

2018-04-04, 19:33 PM

Thanks, so I need to contact the seller to see if an exchange is possible.
It's a little complicated to find one of these models at a reasonable price ... and the model is not available on the lenovo website.
Sometimes the cards have the p/n like 4XC0M95181, but not necessarily the good FRU. Will that be a problem?

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Re: X270 and EM7455

2018-04-05, 8:59 AM
As I said above there are at least 3 types of parts p/ns, depending on their either origin or destination - retail, service, laptop factory assembling (ASM). Again, p/ns from my post above FRU 01AX746, Lenovo p/n (ASM p/n) SW10K97529, retail p/n 4XC0M95181 belong the same modem, the same revision. The same situation is with FRU 01AX748, Lenovo p/n (ASM) SW10K97531.
Different stores offer (list) different types of p/n, no matter what to purchase for x270.



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

Browser Search to find the answers in the Lenovo and Moto Community
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