Skybox mini solo problem

I have a mini solo skybox receiver, recently we display only red worse, I've tried to rs 232 cable and the addition of the originals cable that comes with the receiver, not impossible to start soloboot.bin with UpdateAllFlash.exe or installing the UPFLASH120227.bin with renewflash.exe, move right along as instructed but without success, ask for help if someone knows about the faults or where I'm wrong.
Thank you