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Repair guides and support for Lenovo's line of consumer-oriented laptops, the IdeaPad series, first announced January 2008.

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Wifi schematic for Lenovo IdeaPad C340-14API

Looking for schematic diagram for wifi. Changed the wifi card but still not working. Does anyone have the schematic so I can check the circuitry

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WNFQ-258ACN(BT) 802.11ac/a/b/g/n WiFi + Bluetooth Combo, M.2 2230 A / E Key Module, WiFi 5, Qualcomm QCA6174A, 2T2R, Sparklan


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@jaco1 see if this schematic will work for you. I do not have a boardview for this. Let us know what numbers you have on your motherboard. Should be a Compal motherboard number

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Thank you very much oldturkey, when I get back home I will delve deeper and see if I can locate problem.



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Hi @jaco1

Is the WLAN Network adapter being shown in Device Manager?

If not and if you haven't already done so, check in BIOS for a WLAN enable/disable setting and check that it is enabled.

Most laptops have this setting, usually it is found under the Security or Advanced tab in BIOS. (The manual for your model doesn't show any BIOS settings)

If it is shown in Device Manager what is its status? Right click on the entry > Properties > General tab > Device status box.

If it states that "This device is working OK" check that the airplane mode has not been selected. Go to Settings > Network & Internet > Airplane mode

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John será eternamente grato(a).
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