Use UART or SDIO board: CoreELEC Team SDIO Debug Board
Again, if no log is provided no help can be provided.
Then as GXL is still experimental please do not request support without the needed logs.
I own a vim1 and tested different firmware versions and had never any issue with ceemmc nor inject_bl301. And especial vims are really easy to make UART logs as no adapter is needed as well.