I have the SEGAM-66C-M8-V5.0, Firmware v5.0.0-2023-03-23/15:53, I used the USB image tool to write the GSTL5_OpenWorld_v090plus,img to a 64GB SD card, but when it boots, you see the initial LOADING, then it goes black and nothing happens. I assume from looking through the forums thats its a FW locked stick. Is there anything else i need to do to get the v90plus working? Thanks for all your work on this project!