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Device repair and troubleshooting for the Dell Inspiron 15 inch laptop computer with model number 3567.

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I need to replace my wifi adapter

I have a Dell Inspiron 15 3567 with a Qualcomm QCA61x4A/QCA9377 Wifi Card. After a year of the laptop's purchase, suddenly the wifi and bluetooth stopped working and there was a burning smell coming out of the exhaust vent. I opened the back panel of my laptop and got to know that the wifi adapter was overheating. So I want to get an upgrade to an Intel wifi adapter because they are more reliable than the Qualcomm adapters . It would be really appreciated if anybody could help.

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And I've verified my adapter. It's a Qualcomm QCNFA435

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Hi,

The question maybe you should be asking is why did it overheat in the first place, rather than what can you replace it with.

The original card was chosen by the manufacturer to be compatible with the motherboard and it shouldn’t have overheated, so either the card is faulty or there is another problem that affects the card.

It may be that if there is a problem on the motherboard with the power feeding to the WLAN card that the same thing will happen to a replacement card as well.

Are you sure that it was the WLAN card and not something else close by? Does the card look like it has overheated? Is the fan working OK and expelling the heat from the laptop?

If you want to risk it and to replace the WLAN card then here is a link that may help with deciding on what WLAN card to try.

Here’s the service manual that may also be of some help.

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Yeah I'm sure the wifi adapter is overheating. At first there were problems with the connectivity, as it suddenly used to disconnect from the network. Then after a few months, the laptop wasnt recognising the adapter unless I put it to sleep and wake it up again. Then again after a month, the laptop was recognising the adapter without any problem, but wasn't showing any networks.

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