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CEX option removed for FAT (as dangerous)
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Region selection removed for FAT (as dangerous)
Patch check function disabled (as buggy)
More ModelID added
Added console color detection
Added more messages when installation is complete
NVRAM now will be backuped even for unsupported consoles
Readme extended
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@AKuHAK
AKuHAK committed Apr 28, 2022
1 parent ddfd085 commit 79b7240
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8 changes: 4 additions & 4 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@ Older[^1] consoles do NOT use a Dragon-based mechacon and therefore are not supp

## How to use?

0) Make sure if you are using FMCB **you have "cross-region" installed**.
0) Make sure if you are using FMCB **you have "CROSS-REGION" installed**.

1) Run MechaPwn once to install the exploit patch/payload. An initial backup of your mechacon EEPROM will be made to the USB mass storage device (keep it safe!), then power off the console by disconnecting it from the mains when asked (mechacon is on, even when the ps2 CPUs is off, so you MUST disconnect the power cord!)
2) Run MechaPwn again to choose which region you want.
Expand Down Expand Up @@ -56,7 +56,7 @@ However, an exploitable bug was found in the WriteConfig function that allows wr
1. DSP does not store disk key (16 bytes) inside its registers. This only affects retail units, real DTL units does not have this `bug?/feature?` cause DTL units have another DSP chip revision. The mechacon copies disc ID data from masterdisc sector into the DSP registers and later in CDVDMAN on DTL units. Retail DSP always read back from disc. This will block MasterPatched disks form running directly from OSD.
2. Burning coils. If a disc has bad ECC (error correction) data on the error correction area of each sector, there's a chance it may crash the DSP during a read, given that the coils are driven using PWM (pulse width modulation) there's a 50% chance it may crash while the coil is energized. The coil is not designed to receive constant current so it can be damaged. It doesn't crash with silver discs, it **may** crash with burnt discs, it only depends if the ECC data is bogus or not. While this problem is not caused by MechaPwn, MechaPwn will increase its probability, so you are warned. There exists several hardware solutions for that bug: so called, pin17 fix, romeo fix (for FAT[^5]), subzero mod (for 70k[^7]).

## Advantages
## Program Advantages

DEX option allows the following:

Expand Down Expand Up @@ -86,7 +86,7 @@ The IOP ROM on those consoles has enforced strict logo decryption checks both in

#### Why do consoles not run masterdiscs directly from the OSD?

Additional protection exists on the DSP, which is different in retail and debug consoles, the debug one allows mechacon to store the masterdisc XOR key in its registers, the retail one does not.
Additional protection exists on the DSP, which is different in retail and debugs consoles, the debug one allows mechacon to store the masterdisc XOR key in its registers, but the retail one does not.
Bypassing the logo check bypasses this protection (this can be done using [wlaunchELF](https://github.com/ps2homebrew/wLaunchELF) or a future cdvdman patch using a ps2 homebrew)

#### My PS2 has a modchip. Will it work for me?
Expand All @@ -95,7 +95,7 @@ We don't know. This depends on what modchip you are using. It has been reported

#### What is Force Unlock?

Force-Unlock is a very much needed feature for homebrew applications, like Neo Geo emulation, PS2 Linux for reading CD and DVD-ROM discs.
Force-Unlock is a feature for homebrew applications, like Neo Geo emulation, PS2 Linux for reading CD and DVD-ROM discs.
What it's meant to do is unlock the disk drive for access.

> :warning: Important note: If you enable Force Unlock every CD and DVD will be detected as a PS2 disc, meaning it breaks PS1 games and DVD-Video**
Expand Down
141 changes: 78 additions & 63 deletions main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,7 @@ static unsigned int big_size = 50, reg_size = 36;

static void ResetIOP()
{
MassDeinit();
SifInitRpc(0);
while (!SifIopReset("", 0))
{
Expand Down Expand Up @@ -305,14 +306,27 @@ void selectCexDex(char *isDex)
{
gsKit_clear(gsGlobal, Black);

uint8_t version[4];
uint8_t isSlim = 0;
getMechaVersion(version);
if (version[1] == 5)
isSlim = 0;
else if (version[1] == 6)
isSlim = 1;

struct MENU menu;
menu.title = "Select console type";
menu.x_text = "X Select";
menu.o_text = "O Exit";
menu.option_count = 2;
menu.option_count = 1;
menu.options[0] = "Retail-DEX";
menu.options[1] = "CEX (retail)";
int selected = drawMenu(&menu);
if (isSlim)
{
menu.option_count = 2;
menu.options[1] = "CEX (retail)";
}

int selected = drawMenu(&menu);

gsKit_clear(gsGlobal, Black);

Expand All @@ -332,6 +346,7 @@ void selectRegion(char isDex, uint8_t **region_params, uint8_t **region_cipherte
{
gsKit_clear(gsGlobal, Black);

int selected = 0;
uint8_t version[4];
uint8_t isSlim = 0;
getMechaVersion(version);
Expand All @@ -340,33 +355,27 @@ void selectRegion(char isDex, uint8_t **region_params, uint8_t **region_cipherte
else if (version[1] == 6)
isSlim = 1;

struct MENU menu;
menu.title = "Select region";
menu.x_text = "X Select";
menu.o_text = "O Exit";

if (!(isSlim) && isDex)
{
menu.option_count = 1;
menu.options[0] = "FAT-DEX region change not supported"; // Aeng*U
}
else
if (isSlim)
{
struct MENU menu;
menu.title = "Select region";
menu.x_text = "X Select";
menu.o_text = "O Exit";

menu.option_count = 9;
menu.options[0] = "USA (Multi-7)"; // Aeng*U
menu.options[1] = "Japan"; // Jjpn*J
menu.options[2] = "Russia"; // Reng*R
menu.options[3] = "Korea"; // Kkor*A
menu.options[4] = "Taiwan"; // Htch*A
// menu.options[5] = "China"; // Csch*C
// menu.options[5] = "China"; // Csch*C // slim OSD will crash
menu.options[5] = "Asia (Multi-7)"; // Heng*A
menu.options[6] = "Mexico (Multi-7)"; // Aspa*M
menu.options[7] = "Europe (Multi-7)"; // Eeng*E
menu.options[8] = "Oceania (Multi-7)"; // Eeng*O
}


int selected = drawMenu(&menu);
selected = drawMenu(&menu);
}

if (selected == -1)
{
Expand Down Expand Up @@ -574,7 +583,6 @@ char backupNVM()
fwrite(&data, 1, 2, f);
}

// TODO: open file again, check if its size isnt zero, or maybe even compare with nvm again
// TODO: add more messages to the screen about backuping
fclose(f);

Expand Down Expand Up @@ -755,14 +763,13 @@ uint8_t *getPowerTexture()

if (version[1] == 6)
{
// TODO: FIXME: 79k and 90k has the same mecha 6.12 but different power cord
/* if (version[2] < 12)
return &pwr70k;
else
return &pwr90k; */
uint16_t ModelId;
ReadNVM(0xF8, &ModelId);
if (ModelId < 0xd477) // TODO: or < 0xd474 ??
if (ModelId < 0xd475) // TODO: or < 0xd476 find out what console model is 0xd475
return &pwr70k;
else
// TODO: add picture for ps2 bravia
Expand Down Expand Up @@ -826,11 +833,12 @@ void checkUnsupportedVersion()
struct GSTEXTURE_holder *ModelIDTextures;
struct GSTEXTURE_holder *modelnameTextures;
struct GSTEXTURE_holder *colorTextures;
struct GSTEXTURE_holder *warnTextures1;
struct GSTEXTURE_holder *warnTextures2;
// struct GSTEXTURE_holder *warnTextures1;
// struct GSTEXTURE_holder *warnTextures2;

struct GSTEXTURE_holder *errorTextures;

backupNVM();
gsKit_clear(gsGlobal, Black);

if (!getMechaVersion(version))
Expand Down Expand Up @@ -980,8 +988,8 @@ void checkUnsupportedVersion()
sprintf(RealModelName, "SCPH-50002 SS");
else if (ModelId == 0xd423)
sprintf(RealModelName, "SCPH-50003 SS");
/* else if (ModelId == 0xd424)
sprintf(RealModelName, "???"); */
else if (ModelId == 0xd424)
sprintf(RealModelName, "SCPH-50000 PW");
else if (ModelId == 0xd425)
sprintf(RealModelName, "SCPH-50011");
else if (ModelId == 0xd426)
Expand Down Expand Up @@ -1119,7 +1127,7 @@ void checkUnsupportedVersion()
else if (ModelId == 0xd468)
sprintf(RealModelName, "???"); */
else if (ModelId == 0xd469)
sprintf(RealModelName, "SCPH-79001");
sprintf(RealModelName, "SCPH-79001 SS");
/* else if (ModelId == 0xd46a)
sprintf(RealModelName, "???"); */
else if (ModelId == 0xd46b)
Expand All @@ -1140,12 +1148,12 @@ void checkUnsupportedVersion()
sprintf(RealModelName, "???"); */
else if (ModelId == 0xd473)
sprintf(RealModelName, "SCPH-79008");
/* else if (ModelId == 0xd474)
sprintf(RealModelName, "???");
else if (ModelId == 0xd475)
sprintf(RealModelName, "???");
else if (ModelId == 0xd476)
else if (ModelId == 0xd474)
sprintf(RealModelName, "SCPH-79001 CW");
/* else if (ModelId == 0xd475)
sprintf(RealModelName, "???"); */
else if (ModelId == 0xd476)
sprintf(RealModelName, "SCPH-90000 CW");
else if (ModelId == 0xd477)
sprintf(RealModelName, "SCPH-90000 SS");
else if (ModelId == 0xd478)
Expand All @@ -1168,8 +1176,8 @@ void checkUnsupportedVersion()
sprintf(RealModelName, "???"); */
else if (ModelId == 0xd481)
sprintf(RealModelName, "SCPH-90001");
/* else if (ModelId == 0xd482)
sprintf(RealModelName, "???"); */
else if (ModelId == 0xd482)
sprintf(RealModelName, "SCPH-90001 SS");
else if (ModelId == 0xd483)
sprintf(RealModelName, "SCPH-90004");
else if (ModelId == 0xd484)
Expand Down Expand Up @@ -1219,23 +1227,30 @@ void checkUnsupportedVersion()
sprintf(color, "Black");
if ((ModelId >= 0xd380 && ModelId <= 0xd388 && ModelId != 0xd384) ||
(ModelId == 0xd414) || (ModelId == 0xd41e) || (ModelId == 0xd444) ||
(ModelId == 0xd452) || (ModelId == 0xd456) || (ModelId == 0xd479))
(ModelId == 0xd452) || (ModelId == 0xd456) || (ModelId == 0xd474) ||
(ModelId == 0xd476) || (ModelId == 0xd479))
sprintf(color, "White");
else if ((ModelId == 0xd408) || (ModelId == 0xd40a) || (ModelId == 0xd415) ||
(ModelId == 0xd41a) || (ModelId == 0xd41c) || (ModelId == 0xd420) ||
(ModelId == 0xd422) || (ModelId == 0xd423) || (ModelId == 0xd433) ||
(ModelId == 0xd442) || (ModelId == 0xd454) || (ModelId == 0xd45d) ||
(ModelId == 0xd46d) || (ModelId == 0xd477) || (ModelId == 0xd484) ||
(ModelId == 0xd384))
(ModelId == 0xd46d) || (ModelId == 0xd477) || (ModelId == 0xd482) ||
(ModelId == 0xd484) || (ModelId == 0xd384))
sprintf(color, "Satin Silver");
else if ((ModelId == 0xd41f) || (ModelId == 0xd45f) || (ModelId == 0xd462))
else if ((ModelId == 0xd41f) || (ModelId == 0xd45f) || (ModelId == 0xd462) || (ModelId == 0xd469))
sprintf(color, "Sakura Pink");
else if (ModelId == 0xd404)
sprintf(color, "Midnight Blue");
else if (ModelId == 0xd41b)
sprintf(color, "Aqua Blue");
else if (ModelId == 0xd48b)
sprintf(color, "Cinnabar Red");
else if ((ModelId == 0xd42b) || (ModelId == 0xd42c) || (ModelId == 0xd42e) ||
(ModelId == 0xd430) || (ModelId == 0xd43a) || (ModelId == 0xd441) ||
(ModelId == 0xd44c) || (ModelId == 0xd459) || (ModelId == 0xd45e) ||
(ModelId == 0xd465) || (ModelId == 0xd46b) || (ModelId == 0xd46e) ||
(ModelId == 0xd47e))
sprintf(color, "Unknown");

colorTextures = ui_printf(8, 8 + big_size + big_size / 2 + 3 * (reg_size + 4), reg_size, 0xFFFFFF, "Console color: %s\n", color);

Expand Down Expand Up @@ -1271,31 +1286,25 @@ void checkUnsupportedVersion()
return;
}

if (version[3] != 1)
// todo: fixme: find out why isPatchKnown is crashing
/* if (!isPatchKnown())
{
if (!isPatchKnown())
{
uint8_t current_patch[224];
uint8_t current_patch[224];
for (int i = 0; i < 112; i++)
{
if (!ReadNVM(400 + i, (uint16_t *)&current_patch[i * 2]))
break;
}
warnTextures1 = draw_text(8, 8 + big_size + big_size / 2 + 5 * (reg_size + 4), reg_size, 0xFFFFFF, "Unknown patch, please report!\n");
warnTextures2 = ui_printf(8, 8 + big_size + big_size / 2 + 6 * (reg_size + 4), reg_size, 0xFFFFFF, " %02X %02X %02X %02X %02X\n", current_patch[0], current_patch[1], current_patch[2], current_patch[3], current_patch[4]);
}
else
for (int i = 0; i < 112; i++)
{
warnTextures1 = draw_text(8, 8 + big_size + big_size / 2 + 5 * (reg_size + 4), reg_size, 0xFFFFFF, "\n");
warnTextures2 = draw_text(8, 8 + big_size + big_size / 2 + 6 * (reg_size + 4), reg_size, 0xFFFFFF, "\n");
if (!ReadNVM(400 + i, (uint16_t *)&current_patch[i * 2]))
break;
}
warnTextures1 = draw_text(8, 8 + big_size + big_size / 2 + 5 * (reg_size + 4), reg_size, 0xFFFFFF, "Unknown patch, please report!\n");
warnTextures2 = ui_printf(8, 8 + big_size + big_size / 2 + 6 * (reg_size + 4), reg_size, 0xFFFFFF, " %02X %02X %02X %02X %02X\n", current_patch[0], current_patch[1], current_patch[2], current_patch[3], current_patch[4]);
}
else
{
warnTextures1 = draw_text(8, 8 + big_size + big_size / 2 + 5 * (reg_size + 4), reg_size, 0xFFFFFF, "\n");
warnTextures2 = draw_text(8, 8 + big_size + big_size / 2 + 6 * (reg_size + 4), reg_size, 0xFFFFFF, "\n");
}
} */


struct GSTEXTURE_holder *exitTextures = draw_text(8, 8 + big_size + big_size / 2 + 7 * (reg_size + 4), reg_size, 0xFFFFFF, "Press X to continue.\n");
drawFrame();
Expand All @@ -1307,8 +1316,8 @@ void checkUnsupportedVersion()
freeGSTEXTURE_holder(serialTextures);
freeGSTEXTURE_holder(buildTextures);
freeGSTEXTURE_holder(versionTextures);
freeGSTEXTURE_holder(warnTextures2);
freeGSTEXTURE_holder(warnTextures1);
// freeGSTEXTURE_holder(warnTextures2);
// freeGSTEXTURE_holder(warnTextures1);

while (1)
{
Expand Down Expand Up @@ -1465,6 +1474,7 @@ int main()
uint8_t *powerTexture = getPowerTexture();

char rerun = 0;
int selected = 0;
if (!IsNVMUnlocked())
{
rerun = 1;
Expand All @@ -1487,7 +1497,7 @@ int main()
menu.options[0] = "Change region";
menu.options[1] = "Restore NVRAM backup";

int selected = drawMenu(&menu);
selected = drawMenu(&menu);

if (selected == -1)
{
Expand Down Expand Up @@ -1519,14 +1529,19 @@ int main()
struct GSTEXTURE_holder *unplugTextures = draw_text((gsGlobal->Width - x1) / 2, ((gsGlobal->Height - (225 + 60)) / 2) + 225, reg_size, 0xFFFFFF, text1);

struct GSTEXTURE_holder *rerunTextures = 0;

const char *text2;
int x2, y2;
if (rerun)
{
const char *text2 = "Run MechaPwn again.";
int x2, y2;
getTextSize(reg_size, text2, &x2, &y2);
y2 += reg_size;
rerunTextures = draw_text((gsGlobal->Width - x2) / 2, ((gsGlobal->Height - (195)) / 2) + 225, reg_size, 0xFFFFFF, text2);
}
text2 = "Run MechaPwn again.";
else if (selected == 1)
text2 = "Backup restored successfuly.";
else
text2 = "Installation complete! Enjoy MechaPwn";

getTextSize(reg_size, text2, &x2, &y2);
y2 += reg_size;
rerunTextures = draw_text((gsGlobal->Width - x2) / 2, ((gsGlobal->Height - (195)) / 2) + 225, reg_size, 0xFFFFFF, text2);

drawFrame();
if (rerunTextures)
Expand Down

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