You could install a newer kernel. Support was added more recently
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I think you meant 2.4GHz and 5GHz, for wifi.
2g and 5g are for cellular networks.
https://vger.to/lemmy.zip/c/linuxquestions
It might help you to know there's a possibly better community for tech support questions about Linux. Someone there may have the answer you're looking for.
I'm a Linux noob so I'm sorry I can't help more.
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