Hacking Hardware Picofly - a HWFLY switch modchip

Tafty

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It boots hekate now.

And this is what happens when you try to launch hos
 

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Mansi

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HOS won't load due to version mismatch. I can assume for now that boot1 is not fully patched and does not pass key verification. For ubuntu or android, this is not a problem. If the source code were freely available, a lot of people would connect to it. On the other hand, this is already a huge step and the ability to launch a hekate for anyone with rp2040)
 

FruithatMods

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Check the picture. It’s mosfet. Connecting Sink (4) and Drain (5) but controlled with a Gate (3) from the Pico. That way Pico doesn’t have to supply voltage…it’s using system voltage to do the work. Somebody smarter than me correct if I’m wrong.
View attachment 351560
According to the ccc video which was posted earlier it is actually not supplying voltage to the cpu but taking it away to perform the glitch to "mute" a specific cpu instruction.
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"470" would be 47 ohms (47 is the base number, last digit is multiplier)

https://www.utmel.com/tools/smd-resistor-code-calculator?id=33
I wonder what the reason is behind this specific resistor value. I have seen people use 1 kilo ohm resistors instead.

 

impeeza

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According to the ccc video which was posted earlier it is actually not supplying voltage to the cpu but taking it away to perform the glitch to "mute" a specific cpu instruction.
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I wonder what the reason is behind this specific resistor value. I have seen people use 1 kilo ohm resistors instead.


I always love how the past doc, was able to connect the VHS camcorder to voltage juice using alligator clips which latter become "wireless" the black one felt and all still working fine :rofl2:
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now I'm curious about another thing, would it work with a seeed xiao? bought it cause it was smaller but i wouldn't care too much to spend a bit more and also get a 2040-zero
The only difference between both of them is the exposed pins, may be you need a different pinout
 
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FruithatMods

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Also the problem with the closed nature of the firmware is that you can't easily change the assigned pin number because there is no source code.
 
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Mansi

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For a 47 ohm resistor I would assume they are impedance matching for a 50 ohm output. Just a guess...
Well, put 10 ohms. Nothing will change.
It uses a PWM signal.
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As I wrote earlier, the system version check does not pass, so we get an error PKG1.
C:
    { "20161121183008",  0, 0x1900, 0x3FE0, 0x40014020, 0x8000D000 }, //  1.0.0.
    { "20170210155124",  0, 0x1900, 0x3FE0, 0x4002D000, 0x8000D000 }, //  2.0.0 - 2.3.0.
    { "20170519101410",  1, 0x1A00, 0x3FE0, 0x4002D000, 0x8000D000 }, //  3.0.0.
    { "20170710161758",  2, 0x1A00, 0x3FE0, 0x4002D000, 0x8000D000 }, //  3.0.1 - 3.0.2.
    { "20170921172629",  3, 0x1800, 0x3FE0, 0x4002B000, 0x4003B000 }, //  4.0.0 - 4.1.0.
    { "20180220163747",  4, 0x1900, 0x3FE0, 0x4002B000, 0x4003B000 }, //  5.0.0 - 5.1.0.
    { "20180802162753",  5, 0x1900, 0x3FE0, 0x4002B000, 0x4003D800 }, //  6.0.0 - 6.1.0.
    { "20181107105733",  6, 0x0E00, 0x6FE0, 0x4002B000, 0x4003D800 }, //  6.2.0.
    { "20181218175730",  7, 0x0F00, 0x6FE0, 0x40030000, 0x4003E000 }, //  7.0.0.
    { "20190208150037",  7, 0x0F00, 0x6FE0, 0x40030000, 0x4003E000 }, //  7.0.1.
    { "20190314172056",  7, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, //  8.0.0 - 8.0.1.
    { "20190531152432",  8, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, //  8.1.0 - 8.1.1.
    { "20190809135709",  9, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, //  9.0.0 - 9.0.1.
    { "20191021113848", 10, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, //  9.1.0 - 9.2.0.
    { "20200303104606", 10, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 10.0.0 - 10.2.0.
    { "20201030110855", 10, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 11.0.0 - 11.0.1.
    { "20210129111626", 10, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 12.0.0 - 12.0.1.
    { "20210422145837", 10, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 12.0.2 - 12.0.3.
    { "20210607122020", 11, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 12.1.0.
    { "20210805123730", 12, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 13.0.0 - 13.2.0
    { "20220105094454", 12, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 13.2.1.
    { "20220209100018", 13, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 14.0.0 - 14.1.2.
    { "20220801142548", 14, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 15.0.0+
 
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Piorjade

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Well, put 10 ohms. Nothing will change.
It uses a PWM signal.
Post automatically merged:

As I wrote earlier, the system version check does not pass, so we get an error PKG1.
C:
    { "20161121183008",  0, 0x1900, 0x3FE0, 0x40014020, 0x8000D000 }, //  1.0.0.
    { "20170210155124",  0, 0x1900, 0x3FE0, 0x4002D000, 0x8000D000 }, //  2.0.0 - 2.3.0.
    { "20170519101410",  1, 0x1A00, 0x3FE0, 0x4002D000, 0x8000D000 }, //  3.0.0.
    { "20170710161758",  2, 0x1A00, 0x3FE0, 0x4002D000, 0x8000D000 }, //  3.0.1 - 3.0.2.
    { "20170921172629",  3, 0x1800, 0x3FE0, 0x4002B000, 0x4003B000 }, //  4.0.0 - 4.1.0.
    { "20180220163747",  4, 0x1900, 0x3FE0, 0x4002B000, 0x4003B000 }, //  5.0.0 - 5.1.0.
    { "20180802162753",  5, 0x1900, 0x3FE0, 0x4002B000, 0x4003D800 }, //  6.0.0 - 6.1.0.
    { "20181107105733",  6, 0x0E00, 0x6FE0, 0x4002B000, 0x4003D800 }, //  6.2.0.
    { "20181218175730",  7, 0x0F00, 0x6FE0, 0x40030000, 0x4003E000 }, //  7.0.0.
    { "20190208150037",  7, 0x0F00, 0x6FE0, 0x40030000, 0x4003E000 }, //  7.0.1.
    { "20190314172056",  7, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, //  8.0.0 - 8.0.1.
    { "20190531152432",  8, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, //  8.1.0 - 8.1.1.
    { "20190809135709",  9, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, //  9.0.0 - 9.0.1.
    { "20191021113848", 10, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, //  9.1.0 - 9.2.0.
    { "20200303104606", 10, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 10.0.0 - 10.2.0.
    { "20201030110855", 10, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 11.0.0 - 11.0.1.
    { "20210129111626", 10, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 12.0.0 - 12.0.1.
    { "20210422145837", 10, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 12.0.2 - 12.0.3.
    { "20210607122020", 11, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 12.1.0.
    { "20210805123730", 12, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 13.0.0 - 13.2.0
    { "20220105094454", 12, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 13.2.1.
    { "20220209100018", 13, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 14.0.0 - 14.1.2.
    { "20220801142548", 14, 0x0E00, 0x6FE0, 0x40030000, 0x4003E000 }, // 15.0.0+
Sorry, what do you mean with the system version check?
 

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