Can you send a clear picture for the mainboard part number.Me limpe
CL
Dell 24 All-in-One EC24250
we did build a new file from your old bios with the last update image from Dell official website , this mean it is not a clear me region .That didn't work; the file remains in an initialized state. Extract version 1.0.0 and perform a region cleanup; the initial version should then work.