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  • Registered: ‎08-16-2015
  • Location: St-Petersburg
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  • Message 11 of 12

Re: Lenovo S540 extremely weak wifi - new symptoms

2017-05-25, 20:04 PM

In my case, a very bad wi-fi signal was associated with the broken wire of the corresponding antenna in the area of the hinge of the lid (it simply rubbed). At the same time, bluetooth antenna did not suffer, although it passes in the same place... I solved the problem by purchasing the simplest antenna on aliexpress for $ 5 for 2 pieces (this one: https://al.aliexpress.com/item/A-Pair-of-Laptop-Notebook-Wifi-2-4G-5G- Bluetooth-WWAN-Broadband-Internal-Antenna-61cm-24 / 32402103165.html), I laid a new antenna to the right of the display to the top of the lid (it was too long, but it does not matter, you can look shorter initially). As a result, I have a full wi-fi signal and a spare antenna, in case the new one will be rubbed too. Hope it'll help somebody.


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  • Registered: ‎07-29-2017
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  • Message 12 of 12

Re: Lenovo S540 extremely weak wifi - new symptoms

2019-10-27, 18:12 PM

I found this thread and was helped trememduously.
I decided to replace the broken cable, leaving the antenna unchanged.

I have given my 5-cent on ifixit as https://www.ifixit.com/Guide/Lenovo+ThinkPad+S540+Wi-Fi+antenna+cable+Replacement/127443

Hope this too can help.

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