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Moderated by: Robert

EurAsia : Index PS4 PS4 Fully enable Debug Settings
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Author PS4 Fully enable Debug Settings
modrobert



donor

Registered: 2003-10-17
From: Bangkok
Messages: 6223
Status: Offline
 _#35531 posted 2017-07-20 @ 16:48 GMT   
I have attached a zip file including info and payload binary for PS4 which enables debug settings, assuming this is for firmware v1.76.

Quote:
Fully enable Debug Settings:
*(uint32_t*) 0xFFFFFFFF8269C07Cull=0;
*(uint32_t*) 0xFFFFFFFF8269B56Full=0;



Source Tweet: https://twitter.com/j0lama/status/888047089384644608

I played around a bit with radare2 and the Fully-Enable-Debug-Settings.bin file seems to include code patching the mentioned addresses/offsets.

Code:
            0x0000008b      c704257cc069.  mov dword [0xffffffff8269c07c], 0     
0x00000096 c704256fb569. mov dword [0xffffffff8269b56f], 0



More of the relevant code...

Code:
           0x00000057      0f20c0         mov rax, cr0                          
0x0000005a 4889c2 mov rdx, rax
0x0000005d 4881e2fffffe. and rdx, 0xfffffffffffeffff
0x00000064 0f22c2 mov cr0, rdx
; [0x9090:2]=0
0x00000067 66c70425467c. mov word [0xffffffff82607c46], 0x9090
; [0x9090:2]=0
0x00000071 66c704252678. mov word [0xffffffff82607826], 0x9090
0x0000007b c604251a4332. mov byte [0xffffffff8332431a], 1
0x00000083 c60425384332. mov byte [0xffffffff83324338], 1
0x0000008b c704257cc069. mov dword [0xffffffff8269c07c], 0
0x00000096 c704256fb569. mov dword [0xffffffff8269b56f], 0
0x000000a1 0f22c0 mov cr0, rax
; [0x8:8]=0x900000000000841f
0x000000a4 488b4b08 mov rcx, qword [rbx + 8]
0x000000a8 48c7c6ffffff. mov rsi, 0xffffffffffffffff
; 4035506741100675091
0x000000af 48bf13000000. movabs rdi, 0x3801000000000013
; [0x40:8]=0x8b487fff833242f6
; '@'
0x000000b9 488b4140 mov rax, qword [rcx + 0x40]
; [0x118:8]=0x894848418b488323
0x000000bd 488b90180100. mov rdx, qword [rax + 0x118]
0x000000c4 c74004000000. mov dword [rax + 4], 0
0x000000cb c74008000000. mov dword [rax + 8], 0
0x000000d2 c74014000000. mov dword [rax + 0x14], 0
0x000000d9 c70200000000 mov dword [rdx], 0
; [0x130:8]=0x5441554156415741
0x000000df 488b93300100. mov rdx, qword [rbx + 0x130]
0x000000e6 48897260 mov qword [rdx + 0x60], rsi
0x000000ea 48897a58 mov qword [rdx + 0x58], rdi
0x000000ee 48897268 mov qword [rdx + 0x68], rsi
; [0x123456:8]=-1
0x000000f2 48c70425e8c2. mov qword [0xffffffff832cc2e8], 0x12
0x000000fe 488b142520f9. mov rdx, qword [0xffffffff832ef920]
0x00000106 48c7042518da. mov qword [0xffffffff8323da18], 0
0x00000112 48c740305072. mov qword [rax + 0x30], 0xffffffff83
; [0x48:8]=0x926201528bf4811
; 'H'
0x0000011a 488b4148 mov rax, qword [rcx + 0x48]
0x0000011e 48895018 mov qword [rax + 0x18], rdx
0x00000122 488b142520f9. mov rdx, qword [0xffffffff832ef920]
0x0000012a 48895020 mov qword [rax + 0x20], rdx
0x0000012e 5b pop rbx
0x0000012f c3 ret




If you know more please reply.
  _____________________________ ____________     __________________ /\________
  \    __________________      \      _____/____/     _    \       /_        /
 /     /       |       l/     _/    ____)     _/      _     \     \/  cREAM /
/______________l_______/       \______________\_______|      \_   /________/
 -+--Mo!-------------- \________/ ------------------- l_______/_____\ -----+-

Attachments: ps4_enable_debug.zip   

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