Question Galaxy S21 FE FG "MAC Address Unavailable"

[LegendBrownAle]

Hey folks,

I have read some similar posts but the filename bcmdhb.ko is not found on the subject phone model. I'm assuming I need to remove a certain file from the phone because it has become corrupted (can't turn on wi-fi, hard reset did not fix it). Can someone please provide the file location and what exactly to do with it once found?

Thanks!

 

[B. Diddy]

Welcome to Android Central! Is this a rooted phone?

 

[smvim]

that 'bcmdhb' message pertains to the driver necessary to interact with the Broadcom WiFi chip in your phone's logic board.

drivers/net/wireless/bcmdhd/Kconfig - kernel/common.git - Git at Google

That's an indicator you've been dabbling at a pretty low level of the installed Android OS. Manually restoring an individual driver file will be something of a daunting project.
It might be easier to just flash the stock ROM, that will restore the entire Android OS with a clean, unaltered version. Go here, choose the appropriate firmware, and when you go to the chosen one there's a link to a page with details on how to do the flashing process.

Latest Samsung Galaxy S21 FE firmware

Download the latest Samsung firmware for Galaxy S21 FE with model code SM-G990E. Check out our free download or super fast premium options.

www.sammobile.com

Be sure to pick the ROM that exactly matches your particular phone (i.e. SM-G990U or SM-G990U2 or whatever). It's vital to pick the matching ROM, they are not interchangeable. Don't pick one that's kind of close or that you prefer, it has to correspond exactly.