OpenWrt Wifi issue in Observa VH4032N

I'm frustrated , recently I upgraded my LEDE Observa VH4032N to OpenWRT 18.06.1.
And I notice that client mode or sta cant be configured. Wireless scanner is unable to find any network, for instance wifi works as AP without problems . I need that router works as a Client-Bridge relay, this configuration is compatible with LEDE but dont works with new OpenWRT versions at these models. Sorry my poor english.15400455106411027524949

I have same problem. I have the version OpenWrt 18.06.1 r7258-5eb055306f / LuCI openwrt-18.06 branch (git-18.228.31946-f64b152).
|Model|Observa VH4032N|
|Architecture|bcm63xx/VH4032N (0x6368/0xB2)|
Wireless:** BCM43222 (14e4:a8d6) 802.11b/g/n (onboard)

I do the test with serial port and i have this answer.

iwinfo radio0 scan

[ 2028.844751] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
[ 2029.017691] IPv6: ADDRCONF(NETDEV_UP): tmp.radio0: link is not ready
[ 2030.880617] b43-phy0 ERROR: DMA RX reset timed out
[ 2030.969230] ssb: Timeout waiting for bitmask 01800000 on register 0F90 to cle                  ar.

No scan results

The problem i think is the controller. we have any solutions?
Thank you and sorry for my english.