g935 fxxu2ERM frp

Hi
Tried to remove FRP via UART, software claimed success but FRP still on
Tried to flash combination from support
combination FA60 G935FXXU2ARA but phone enters bootloader exception

(black screen with red and green writing).
I have now flashed back to stock rom.
Is there a solution?
or a combinatiom file?
Thank you

Steve