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January 17th, 2026 22:01
Internet connection issue after BIOS upgrade
After the BIOS upgrade this week I cannot access the Internet. When I look for the WLAN card I get the message that it does not exist. I have tried all the recommended remedies but none work.
ejn63
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January 17th, 2026 22:07
If that doesn't include a reset (disconnect the main battery from the system board with the system unplugged, and hold the power button for 30 sec), that's next.
Anything more specific requires that you supply at least the system model number (Inspiron 3593, etc.).
MacCDN71
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January 17th, 2026 23:08
@ejn63 Thank you. My computer is an Inspiron 16 5640
ejn63
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January 18th, 2026 00:48
manual here has the details on how to access the battery connector
https://www.dell.com/support/product-details/en-us/product/inspiron-16-5640-laptop/resources/search
While the cover is off, make sure the card is firmly in its socket.
anne_droid
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January 18th, 2026 13:14
Hi
I suggest the "getmac" command to list whatever it can.
MacCDN71
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January 18th, 2026 15:35
@ejn63 Thank you for your help.
MacCDN71
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January 18th, 2026 15:36
@anne_droid Thank you for your help.