$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install Broadcom BCM4356a2 Driver in Gnu/Linux Distros

GNU/Linux Installing Broadcom BCM4356a2 Firmware Guide

Hi! This tutorial will guide you step-by-step on How to Install Broadcom BCM4356a2 Wireless Bluetooth Driver Firmware in GNU/Linux Systems.

And the BCM4356a2 Devices are supported by the btbcm Kernel Module on Linux 4.15+.

But what may be easily missing is the needed Proprietary Firmware.

In any case to get the possible Newest Patches, Fixes, and Improvements you are strongly Recommended to Update System & Kernel.

Finally, Arch Linux based see instead: AUR Package Installation.

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GNU/Linux Broadcom BCM4356a2 Wireless Bluetooth Driver Firmware Installation Guide