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    Hacking Hardware Picofly - a HWFLY switch modchip

    Wrong connection Capacitor ====================================================== suggestion Use thick wire GND, VCC, PIN26, MOS-D, MOS-S One side thin line PIN29,PIN28,PIN27,PIN15 BOOT card LOGO (OFW) strange phenomenon... Check PIN26 MOS-D, S are solidly welded and can indeed boot up stably
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    Hacking Hardware Picofly - a HWFLY switch modchip

    You can try to add I2C PIN
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    Hacking Hardware Picofly - a HWFLY switch modchip

    YES
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    Hacking Hardware Picofly - a HWFLY switch modchip

    tried MOSFET single SP1(D) SP2(D) use 0.2mm cable + GND(S) 0.2mm cable MOSFET dual SP1(D) SP2(D) use 0.1mm cable + GND(S) 0.2mm cable The thickness of the cable also affects the boot speed
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    Hacking Hardware Picofly - a HWFLY switch modchip

    S cable D cable of MOSFET can be used for overtesting minimum current 0.2mm Cable (SP1 0.1mm + SP2 0.1mm) D cable can also be tested 0.1mm~0.15mm cable can not be over-tested directly three short yellow light or unstable
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    Hacking Hardware Picofly - a HWFLY switch modchip

    In use, it is no different from ZERO Currently configured OLED Firmware :2.74 + I2C SDA=12, SCL=13 V2 or Lite configuration Firmware: 2.74 without I2C link
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    Hacking Hardware Picofly - a HWFLY switch modchip

    1687366081 Receive a complimentary RP2040 There is a chance that the startup will fail. Please pay attention to the details when installing this kind of "Pi"?
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    Hacking Hardware Picofly - a HWFLY switch modchip

    Battery to Device Simple Ammeter It is convenient to check whether the working current is normal abnormal power consumption Like handmade can create a
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    Hacking Hardware Picofly - a HWFLY switch modchip

    Personally try OLED installation (the number of samples is only four) NO1 100% FW 2.74 (light indicator blue~~white) + HWFLY flex cables, dual mosfet + I2C SDA SCL NO2 90% success 10% chance of original factory startup FW 2.73 (light indicator blue~~yellow) + HWFLY flex cables, dual mosfet +...
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    Hacking Hardware Picofly - a HWFLY switch modchip

    The principle is very simple dat0~3+ CLK+ CMD is equal to EMMC Power on Priority unlock Obtain BOOT authority If it fails, it will be remade and it will be RST The MOSFET is to pull down the CPU voltage VCC 1.1V and pull down 0.9V NEW CPU 0.9V pull down 0.8V User S cable is too thin to...
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    Hacking Hardware Picofly - a HWFLY switch modchip

    Automatic operation with battery connected, please inquire about RST
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    Hacking Hardware Picofly - a HWFLY switch modchip

    DAT0 fell off, thought before use, sure it is feasible AWD30 OK line cable (flattened) needle-nose pliers can control the flattened variable
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    Hacking Hardware Picofly - a HWFLY switch modchip

    Personal Simple idea I don’t know if it’s possible to use it on the OLED version AWD30 OK cable (squeezed) Insert EMMC DAT0 address Use PCB circuit Fixed No entity Experiment just personal idea
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    Hacking Hardware Picofly - a HWFLY switch modchip

    Please confirm the resistance value of each point Each model is different Approximate range
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    Hacking Hardware Picofly - a HWFLY switch modchip

    Only the SP2 Bold cable can be installed Can improve unilateral BOOT speed
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