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

English Community

ThinkPad NotebooksThinkPad: S Series, ThinkPad Yoga and Twist Laptops
All Forum Topics

2 Posts



4 Signins

24 Page Views

  • Posts: 2
  • Registered: ‎04-19-2015
  • Location: France
  • Views: 24
  • Message 1 of 3

S540 wifi power is weak and the pb is not the wifi source signal

2015-04-20, 0:19 AM


I have 2 Lenovo laptops at home:

- E530 + Win7 64bits + Intel Wireless N 2230 => wifi signal is excellent

- S540 + Win7 64bits + Intel Wireless N 7260 => wifi signal is really weak


Till 2 weeks ago, S540 was working as well as E530, I didn't have any issues with my wifi. But now S540 shows a poor signal strength and is unable to connect unless I put it 2 meters from the router, whereas my E530 can connect even outside the building on that same router.


I have no idea about what could have changed between before and now, the only thing I know is that I perform regular driver updates (I have Intel wifi driver v17.0.2.5), that I had a bluetooth mouse connected there till I lost it 4 weeks ago and that the warranty expired 1 month ago...

Is the N7260 hardware damaged or is it a "simple" configuration problem ?

Can you help me please ? 






1 Posts



3 Signins

13 Page Views

  • Posts: 1
  • Registered: ‎10-20-2015
  • Location: Italy
  • Views: 13
  • Message 2 of 3

Re: S540 wifi power is weak and the pb is not the wifi source signal

2015-10-21, 9:54 AM
I have the same issue since some time, I've didn't change nor update my os/drivers so I fear is something about the hardware. I had many problems since I've bought this model. Hope this is not another case.

8 Posts


The Netherlands

10 Signins

103 Page Views

  • Posts: 8
  • Registered: ‎02-15-2016
  • Location: The Netherlands
  • Views: 103
  • Message 3 of 3

Re: S540 wifi power is weak and the pb is not the wifi source signal

2016-12-02, 22:11 PM

The wifi problems probably are related to the antenna. Due to the bad design of the antenna in the S540 it breaks after about 6 to 12 months. Because Lenovo was not willing to help me (unless I paid for their design flaws), I replaced the antenna myself. After a few hours of screwing, I got back the full wifi signal. The same happened to my friends laptop. I hope this post helps other people getting back their wifi signal.


Disclaimer: I expect the bad designed antenna to break again in about 6 to 12 months. So be prepared to follow this procedure a few more times...


Link to antenna (part number 04X1770):




Instructions to replace the antenna kit:





Forum Home

Community Guidelines

Please review our Guidelines before posting.

Learn More

Check out current deals!

Go Shop





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