Morello board hangs before reaching UEFI at LcdGraphicsOutputDxe.efi

Hi,

I just started with the Morello board, and after flashing the latest prebuilt on a USB memory,  Linux wouldn't boot to home and hangs at SMP bringup which pointed me to

 Morello: Pre-built images stall at "smp: Bringing up secondary CPUs" 

Then I go the latest firmware prebuilt 

https://git.morello-project.org/morello/board-firmware/-/tree/morello/mainline?ref_type=heads

And flashed it on the SD card as mentioned in 

https://git.morello-project.org/morello/docs/-/blob/morello/mainline/firmware/user-guide.rst#id23

And now I can't reach UEFI boot menu and it hangs as follows:

add-symbol-file /builds/morello/manifest/bsp/uefi/edk2/Build/morellosoc/DEBUG_CLANGDWARF/AARCH64/NetworkPkg/HttpDxe/HttpD0
Loading driver at 0x000F7F30000 EntryPoint=0x000F7F315DC HttpDxe.efi
add-symbol-file /builds/morello/manifest/bsp/uefi/edk2/Build/morellosoc/DEBUG_CLANGDWARF/AARCH64/NetworkPkg/HttpBootDxe/H0
Loading driver at 0x000F7F17000 EntryPoint=0x000F7F185DC HttpBootDxe.efi
ConvertPages: failed to find range 180000000 - 180022FFF
Loading driver at 0x000F7EF4000 EntryPoint=0x000F7EF6008
Loading driver at 0x000F7EF4000 EntryPoint=0x000F7EF6008
add-symbol-file /builds/morello/manifest/bsp/uefi/edk2/Build/morellosoc/DEBUG_CLANGDWARF/AARCH64/Platform/ARM/Morello/Dri0
Loading driver at 0x000F7EED000 EntryPoint=0x000F7EEE2AC PlatformDxe.efi
[PlatformDxe:I2cEnableBusConf]: requested bus speed 400000 != configured bus speed 386363
add-symbol-file /builds/morello/manifest/bsp/uefi/edk2/Build/morellosoc/DEBUG_CLANGDWARF/AARCH64/ArmPlatformPkg/Drivers/L0
Loading driver at 0x000F7EE3000 EntryPoint=0x000F7EE44C4 LcdGraphicsOutputDxe.efi


Please note that I have no screen connected, and when I connect one via HDMI it still hangs with slightly different error
Loading driver at 0x000F7EF4000 EntryPoint=0x000F7EF6008
Loading driver at 0x000F7EF4000 EntryPoint=0x000F7EF6008
add-symbol-file /builds/morello/manifest/bsp/uefi/edk2/Build/morellosoc/DEBUG_CLANGDWARF/AARCH64/Platform/ARM/Morello/Dri0
Loading driver at 0x000F7EED000 EntryPoint=0x000F7EEE2AC PlatformDxe.efi
[PlatformDxe:I2cEnableBusConf]: requested bus speed 400000 != configured bus speed 386363
add-symbol-file /builds/morello/manifest/bsp/uefi/edk2/Build/morellosoc/DEBUG_CLANGDWARF/AARCH64/ArmPlatformPkg/Drivers/L0
Loading driver at 0x000F7EE3000 EntryPoint=0x000F7EE44C4 LcdGraphicsOutputDxe.efi
EDID block read interrupt not set
InitializeDisplay: ERROR - Can not initialise the display. Exit Status=Time out
EDID block read interrupt not set
InitializeDisplay: ERROR - Can not initialise the display. Exit Status=Time out
EDID block read interrupt not set
InitializeDisplay: ERROR - Can not initialise the display. Exit Status=Time out
Thanks,
Mostafa