which WIFI / BT module is in the BOX Fn-link 6222B-SRB or Fn-link 6222B-SRC
if the Fn-link 6222B-SRB SSH log in to enter this command
mount -o remount,rw /flash
fdtput -tx /flash/dtb.img /sdio@ffe03000/sdio/ f_max 0xa21fe80
reboot
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