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35t Firmware Flashing

This guide walks you through preparing, identifying, and flashing firmware to your 35T DMA card using LurkerUpdater.

Before you begin: Your firmware must be built for your card's unique DNA ID. Do not flash firmware intended for a different card.

📦 What You'll Need

Before starting, make sure you have:

  • 35T DMA card

  • Windows PC

  • LurkerUpdater

  • USB-A data/power cable

  • USB-C JTAG/Update cable

  • Your card's matching .bin firmware file

📥 Download LurkerUpdater

Download LurkerUpdater - Password is duck35

1. 📥 Install the LurkerUpdater Driver (2nd PC)

Extract the downloaded LurkerUpdater folder.

  1. Open the extracted folder.

  2. Open the UpdateDriver folder.

  3. Run SETUP.EXE.

  4. Click Install.

  5. Click OK once installation is complete.

The serial driver normally only needs to be installed once. You do not need to reinstall it every time you flash the card.

2. 🔌 Connect Both USB Cables

Your 35T card requires two USB connections during the flashing process.

USB-A — Data / Power

Connect the card's Data (USB-A) port to a USB port on the PC.

This connection provides power to the card.

USB-C — JTAG / Update

Connect the card's JTAG/Update (USB-C) port to another USB port on the same PC.

This connection is used to:

  • Read the card's DNA

  • Communicate with LurkerUpdater

  • Flash firmware

Photo: Top Type-C = Flash port Side: USB-A = Power port

Keep both USB cables connected throughout the flashing process.

For the most stable power connection, we recommend connecting the USB-A cable directly to a rear USB 3.0 port on your motherboard. Avoid USB hubs or extension cables when possible.

3. 🔎 Check the Card & Find the COM Port

Once both cables are connected, check the LEDs on your 35T card.

LED Status

Blinking blue LEDs

The card is powered and the bootloader is in its flash-ready state. You can continue.

Solid blue LEDs

The card is powered. If LurkerUpdater cannot communicate with the card, power-cycle the card once or twice before continuing.

No LEDs

The card is not receiving power.

Check the following:

  • USB-A power cable

  • USB port

  • Cable connection

  • Try another USB port if necessary

Never disconnect the card or toggle its power while firmware is actively being written.

Find Your COM Port

On Windows:

  1. Open Device Manager.

  2. Expand Ports (COM & LPT).

  3. Locate:

    USB-SERIAL CH343

  4. Note the COM number shown beside it.

For example:

USB-SERIAL CH343 (COM3)

You will need this COM number in the next step.

4. 🧬 Read Your Card's DNA

Each 35T card has a unique DNA ID used to generate firmware specifically for that card.

  1. Open LurkerUpdate_V2.0.0.exe.

  2. Under Port, select the COM port you found in Device Manager.

  3. Click open.

When successfully connected, the button will change from:

open

to:

close

Leave the port open.

Retrieve the DNA

With the LurkerUpdater window selected, type:

qaqaqa

You do not need to press Enter.

Your card's DNA should appear inside the updater.

It will look similar to:

DNA = 0123456789AB

Copy the DNA or take a screenshot of it.

Get Your Firmware

Send the DNA to your firmware provider or open a firmware ticket with Duck's Services.

Your firmware will be generated specifically for that DNA ID.

Do not flash firmware made for another card. Always verify that the firmware you received matches your card's DNA.

5. ▶️ Flash the Firmware

Once you have received your matching .bin firmware file, return to LurkerUpdater.

Before proceeding, confirm:

  • Both USB cables are connected

  • The correct COM port is selected

  • The port is open

  • You have the firmware matching your card's DNA

Flashing Steps

  1. Set FileType to:

    BIN

  2. Click the .. button beside the file path.

  3. Select your provided .bin firmware file.

  4. Click OK to begin flashing.

  5. Wait for the flashing process to completely finish.

The process will normally take approximately 1–3 minutes.

⚠️ DO NOT interrupt the flashing process.

While the firmware is being written:

  • Do not unplug either USB cable

  • Do not power off the card

  • Do not restart or shut down the PC

  • Do not close LurkerUpdater

  • Do not toggle any switches on the card

Wait until LurkerUpdater confirms that flashing has finished.

For this flashing procedure, select BIN as the FileType.

6. 🔄 Restart the Card

After LurkerUpdater confirms that the firmware was successfully flashed:

  1. Close LurkerUpdater.

  2. Disconnect power from the card.

  3. Reconnect the card.

  4. Allow the card to fully initialize.

The card should now boot using your newly installed firmware.

7. 🖥️ Install the Firmware Drivers

Once the card has been successfully flashed, install the drivers provided with your firmware on your main PC.

  1. Download and unzip the provided driver files.

  2. Open the extracted folder.

  3. Locate the Setup Information (.INF) file.

  4. Right-click the .INF file.

  5. Select Install.

  6. Allow Windows to complete the driver installation.

If your firmware provider included multiple files, make sure you are installing the .INF file specifically intended for your firmware.

8. ❄️ Cold Boot Both PCs

After installing the firmware drivers, perform a full cold boot of both computers.

  1. Fully shut down your main PC.

  2. Fully shut down your second PC.

  3. Make sure the 35T card is connected correctly.

  4. Power both systems back on.

A cold boot ensures the card and newly installed drivers initialize from a completely powered-off state.

🔧 Troubleshooting

No COM Port Appears

If USB-SERIAL CH343 does not appear under Device Manager:

  • Reinstall UpdateDriver\SETUP.EXE

  • Try another USB port

  • Try another data-capable USB-C cable

  • Avoid USB hubs and extension cables

Serial not connect!

If LurkerUpdater displays:

Error: Serial not connect!

Check:

  • USB-C JTAG/Update cable

  • Correct COM port is selected

  • You clicked open

  • The button currently displays close

DNA Does Not Appear

If typing qaqaqa does nothing:

  1. Click inside the LurkerUpdater window.

  2. Confirm the correct COM port is selected.

  3. Confirm the port is open and the button displays close.

  4. Type:

    qaqaqa

Do not press Enter.

LEDs Are Not Blinking

If the card is powered but does not enter its expected flash-ready state:

  1. Make sure you are not currently flashing firmware.

  2. Power-cycle the card.

  3. Reconnect it and check the LEDs again.

You may need to repeat the power cycle once or twice.

Flash Fails Partway Through

A flash that stops or fails partway through can be caused by an unstable USB connection or power source.

Try the following:

  • Move the USB-A power cable to a rear motherboard USB 3.0 port

  • Avoid hubs or extensions

  • Confirm both USB cables are secure

  • Restart the flashing process from the beginning

  • Confirm FileType = BIN

  • Confirm the firmware matches your card's DNA

✅ Quick Checklist

Before flashing:

During flashing:

After flashing:

✅ You're Done

You have now successfully flashed your 35t DMA Card.

It is now recommended to run a Speed Test (2nd PC) to ensure everything was flashed correctly.

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