Welcome to our peer-to-peer forums, where owners help owners. Need help now? Visit eSupport here.

English Community

ThinkPad NotebooksThinkPad: X Series Laptops
All Forum Topics
Options

48 Posts

11-20-2015

India

173 Signins

1139 Page Views

  • Posts: 48
  • Registered: ‎11-20-2015
  • Location: India
  • Views: 1139
  • Message 1 of 4

Using Sierra EM7445 on X250

2016-08-12, 18:15 PM

Hi All,

 

I have Sierra EM7445 WWAN card and have X250 machine, while seraching the net about how can I use this card on my machine, I found and article on Zukato.com (HERE) about using this wwan card on x250 after changing the vendor and product id's. But author has not mentioned it clearly that How can a layman change the id's. Can anyone here explain about how can I do that ?

 

Thanks in advance !

 

MK

 

Reply
Options

14 Posts

06-21-2016

United States of America

24 Signins

154 Page Views

  • Posts: 14
  • Registered: ‎06-21-2016
  • Location: United States of America
  • Views: 154
  • Message 2 of 4

Re: Using Sierra EM7445 on X250

2016-08-12, 18:59 PM

I’m still using a previous generation Lenovo laptop, X240. It includes an m.2 slot for WWAN devices. All WWAN devices are currently using USB interface, and none are using PCI-E, so only USB connectors are required to function in laptop’s m.2 slot. USB version in X240 and X250 is 2.0 only. And Sierra Wireless EM7445 supports USB 3.0 already, so even if the device is capable of receiving LTE data very fast, using carrier aggregation, there still can be a real bottleneck in data throughput, because the device will need to fallback to the older USB 2.0 protocol when coupled with a previous generation laptop, like X240 or X250.

Also every time I turn my laptop on or wake up it from sleep, I’m getting a Windows notification “This device can perform faster. Please connect it to a USB 3.0 port”.

 

Lto 6 tapes

Reply
Options

5606 Posts

04-25-2008

United States of America

40045 Signins

769439 Page Views

  • Posts: 5606
  • Registered: ‎04-25-2008
  • Location: United States of America
  • Views: 769439
  • Message 3 of 4

Re: Using Sierra EM7445 on X250

2016-08-13, 0:24 AM

Hi maheshkr9, and welcome to the Lenovo User Community!

 

It's a hack by zukota. I suggest asking any questions there (see responses at the bottom of the blog article).

USB-C: Just cos it fits don't mean it works.
I don't work for Lenovo. I'm a crazy volunteer!
Reply
Options

48 Posts

11-20-2015

India

173 Signins

1139 Page Views

  • Posts: 48
  • Registered: ‎11-20-2015
  • Location: India
  • Views: 1139
  • Message 4 of 4

Re: Using Sierra EM7445 on X250

2016-08-13, 3:08 AM
Hi Bananaman,

I have seen the responses at the bottem, but no one is replying on that now. So I am looking for help here. may be anyone with more tech. knowledge can help me understand.

Thanks !!
Reply
Forum Home

Community Guidelines

Please review our Guidelines before posting.

Learn More

Check out current deals!

Go Shop
X

Save

X

Delete

X

No, I don’t want to share ideas Yes, I agree to these terms