I can’t use any wireless features neither Wi-Fi nor Bluetooth

Hardware Support
1

Both Wi-Fi and Bluetooth stopped working properly. It appears that all wireless functionality may have been affected, possibly due to firmware, driver, or rfkill-related changes.**

Wi-Fi issues

  • The laptop can detect my wireless network (SSID), but:
    • It connects sometimes (but doesn't show signal of connection) and disconnects at random then disappears.
    • Other times it refuses to connect at all.
    • When it loses the connection, it fails to reconnect unless the Wi-Fi interface is restarted.
  • The connection also became unstable after installing the following firmware package:
    • linux-firmware_20251125.gitff6418d1-0ubuntu1_all.deb (approx. 634 MB).
  • After this update, the system started having both Wi-Fi and Bluetooth issues.

Bluetooth issues

  • Bluetooth no longer detects any nearby devices (phones, earbuds, speakers).
  • Scanning shows 0 devices even when tested with multiple devices in pairing mode.
  • The Bluetooth adapter appears in the system, but fails to operate normally.
  • Restarting Bluetooth service, rebooting, and resetting settings did not help.

Possible cause: rfkill or firmware

  • I previously ran rfkill list and tried unblocking devices.
  • After this, Bluetooth stopped working completely.
  • It is possible that firmware, driver modules, or rfkill state has been corrupted or misconfigured.

What has already been attempted:

  1. Restarted NetworkManager and Bluetooth services
    (systemctl restart NetworkManager, systemctl restart bluetooth)
  2. Checked rfkill status
  • Tried rfkill unblock all
  • Confirmed that nothing appeared as “hard blocked”, but behavior didn’t change.
  1. Reinstalled/updated linux-firmware package
  • Installed the newest firmware package (listed above).
  • Problems started shortly after this.
  1. Removed and reloaded drivers
  • Tried unloading and loading modules such as:
    modprobe -r iwlwifi / modprobe iwlwifi
  • No improvement.
  1. Reset Wi-Fi configuration
  • Deleted and recreated network profiles.
  • Tested with different SSIDs and configurations.
  1. Tested different devices
  • Bluetooth fails to detect any device, confirming it’s not a problem with the peripherals.
  1. Rebooting multiple times
  • No change.
2

Please make sure you have Secure Boot & Fast Boot, disabled in the BIOS.

If dual booting with windows, also make sure to disable Fast Startup in Windows as well.

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3

What is the terminal output of

sudo lshw -C network

and

rfkill list

?

Take a look at Software&Updates >Additional drivers if there are offered drivers

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4

This is not he default linux-firmware Package from the System:
grafik

Where did You download it? I would suggest to uninstall it and then install the Package from the Repos with sudo apt install linux-firmware

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