Hi forum!
I just want to bring a big thanks to the community, i managed with a lot of googling and forum-lurking bring back my MR33 to life again. I did a update via the GUI and it died basically ... so before that, all was working.
My MR33 was running a snapshot version of 19.07.2, not sure which one. But everything was great.
So, my problem now after doing the uboot thing, flasing it, permanent installing openwrt again, my radios wont come up. At first i could not even see Wireless in the Luci GUI. I reinstalled the older firmware 18.06.1, and then one of the radios started working. I upgraded to the latest snapshot, and once again, missing all the radios.
From the system/kernel log i can see this 
14.397445] ath10k_ahb a000000.wifi: qca4019 hw1.0 target 0x01000000 chip_id 0x003900ff sub 0000:0000
[ 14.397491] ath10k_ahb a000000.wifi: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0
[ 14.408971] ath10k_ahb a000000.wifi: firmware ver 10.4b-ct-4019-fW-013-b63cea875 api 5 features mfp,peer-flow-ctrl,txstatus-noack,wmi-10.x-CT,ratemask-CT,regdump-CT,txrate-CT,flush-all-CT,pingpong-CT,ch-regs-CT,nop-CT,set-special-CT,tx-rc-CT,cust-stats-CT,txrate2-CT,beacon-cb-CT,wmi-block-ack-CT,wmi-bcn-rc-CT crc32 a09ca172
[ 14.463508] ath10k_ahb a000000.wifi: failed to fetch board data for bus=ahb,vendor=0000,device=0000,subsystem-vendor=0000,subsystem-device=0000,variant=Meraki-MR33 from ath10k/QCA4019/hw1.0/board-2.bin
[ 14.519200] ath10k_ahb a000000.wifi: failed to fetch board-2.bin or board.bin from ath10k/QCA4019/hw1.0
[ 14.519284] ath10k_ahb a000000.wifi: failed to fetch board file: -12
[ 14.527715] ath10k_ahb a000000.wifi: could not probe fw (-12)
[ 15.421055] ath10k_ahb a800000.wifi: qca4019 hw1.0 target 0x01000000 chip_id 0x003900ff sub 0000:0000
[ 15.421115] ath10k_ahb a800000.wifi: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0
[ 15.434029] ath10k_ahb a800000.wifi: firmware ver 10.4b-ct-4019-fW-013-b63cea875 api 5 features mfp,peer-flow-ctrl,txstatus-noack,wmi-10.x-CT,ratemask-CT,regdump-CT,txrate-CT,flush-all-CT,pingpong-CT,ch-regs-CT,nop-CT,set-special-CT,tx-rc-CT,cust-stats-CT,txrate2-CT,beacon-cb-CT,wmi-block-ack-CT,wmi-bcn-rc-CT crc32 a09ca172
[ 15.463422] ath10k_ahb a800000.wifi: failed to fetch board data for bus=ahb,vendor=0000,device=0000,subsystem-vendor=0000,subsystem-device=0000,variant=Meraki-MR33 from ath10k/QCA4019/hw1.0/board-2.bin
[ 15.528402] ath10k_ahb a800000.wifi: failed to fetch board-2.bin or board.bin from ath10k/QCA4019/hw1.0
[ 15.528486] ath10k_ahb a800000.wifi: failed to fetch board file: -12
[ 15.536922] ath10k_ahb a800000.wifi: could not probe fw (-12
Since my linux knowledge is pretty limited i'm not sure how to try different drivers. I've reinstalled the driver packages with opkg, tried to remove them all, reboot, etc, the classic things.
I'm just so confused why it was working before i broke it, i kind of have the same software, if not newer..
Could anyone point me in the correct direction? the MR33 is up and runnning and i have all the access i need to fix this, but i do not know how
Best regards