@fattony4

# Copy the broken firmware (46) somewhere else, so we don't lose it, in case we 
need it for testing later.
sudo cp -p /lib/firmware/iwlwifi-9260-th-b0-jf-b0-46.ucode /root

# Copy the 43 firmware over top / replacing the 46 firmware:
sudo cp -p /lib/firmware/iwlwifi-9260-th-b0-jf-b0-43.ucode 
/lib/firmware/iwlwifi-9260-th-b0-jf-b0-46.ucode

# To see which firmware file the iwlwifi module is expecting to load, by the 
way, use:
modinfo iwlwifi |grep 9260

# to check wich firmware various versions of the kernel will expect to load, 
you specify the direct path of the iwlwifi module for that kernel.  Two 
examples:
modinfo 
/usr/lib/modules/5.2.0-8-generic/kernel/drivers/net/wireless/intel/iwlwifi/iwlwifi.ko
 |grep 9260
modinfo 
/usr/lib/modules/5.0.0-20-generic/kernel/drivers/net/wireless/intel/iwlwifi/iwlwifi.ko
 |grep 9260

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https://bugs.launchpad.net/bugs/1836986

Title:
  Kernel 5.2.0-8: iwlwifi Microcode SW error detected Wireless-AC 9260

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