[Help/Info] Xbox 360 Slim 17559 - ENDGAME with 4-Stage BadUpdate Payload issues (FreeMyXe Beta 2)

Hi guys,

I'm currently testing the ENDGAME exploit on a Slim (17559 dashboard) using the BadUpdate vector. I've moved away from standard XeXMenu because of constant black screen freezes and memory allocation errors on this specific kernel.

My Setup:

• Console: Xbox 360 Slim
  
  
• Dashboard: 17559
  
  
• Exploit: ENDGAME via BadUpdate entry point.
  
  
• Payloads used: * BadUpdateExploit-2ndStage.bin (Mounting Mass0)
  
  • BadUpdateExploit-3rdStage.bin (Memory allocation stage)
    
    
  • BadUpdateExploit-4thStage.bin (Execution bridge)
    
• Target App: FreeMyXe Beta 2 (renamed to default.xex)
  

The Problem: The console frequently enters what I call "Fortress Mode". During the Stage 3/4 jump, the system either hangs on a black screen or shows a distorted "Chinese Wall" style artifacts.

Observations:

1. Stage 3 binary seems to struggle with finding a clean memory offset: Failed to allocate payload memory.
   
   
2. Standard XeXMenu 1.1 fails to initialize the filesystem after the jump.
   
   
3. FreeMyXe Beta 2 is my current target, but the "BadUpdate" trigger is hit-or-miss.
   

Question: Has anyone optimized the memory offsets in BadUpdateExploit-3rdStage.bin specifically for the 17559 retail kernel? Or is there a more stable stage chain for launching modern homebrew (like FreeMyXe) without a full RGH?