Black screen when plugged on USB
本帖最后由 tonirox 于 2026-6-26 01:53 编辑Hi, my U-Studio D200 is not showing anything on screen when plugged, but i hear the sound of "something" being plugged on USB and it shows as "USB BILLBOARD" as shown:
i already tried updating the ulanzi studio but it did not work.
what do i need to do?
Hello, based on the information you provided, we believe the following possibilities may exist. You can check them off one by one.
Option 1: Insufficient USB Power.
1. Make sure the USB cable is connected directly to a USB port on your computer; do not use a docking station or hub as an intermediary.
2. If connected directly to the computer, try using a different USB port. (For desktop computers, connect to a USB port on the motherboard at the back of the case.)
3. If using Mac OS, test both USB-A and USB-C ports to rule out unstable connections.
4. Try using a different USB cable to rule out a cable malfunction.
Scenario 2: Reinstall the firmware application by running the script. (Windows only)
1. On a Windows computer, open the link below in your browser and download the script file.
https://cdn.ulanzistudio.com/sharing/Update_2.0.3_260227.zip
2. Unzip the ZIP file, locate “update.bat,” double-click to run it, and wait for the device to reboot. It should enter the system normally in about 20 seconds.
If the script fails to run and the device does not reboot, it indicates that the device’s port is not recognized, which may be due to a firmware system failure. In this case, proceed to the third solution.
Option 3: Firmware Flash
If there is no serial number on the back of your device, or if the serial number starts with 01 or a letter, you can use this method.
Use the RK flashing tool to update the firmware. (Windows only)
Video tutorial link:
https://cdn.ulanzistudio.com/sharing/D200%20RK%20Flash%20for%20Windows.mp4Download the attached tool from the link:
https://cdn.ulanzistudio.com/sharing/Starting-up_update_2601.zip
1. The compressed file in the link contains a Word tutorial and important precautions—please be sure to read them carefully. There are two IMG files in the folder. Be sure to exit the Ulanzi Studio app before upgrading the RK firmware.
2. The tweezers used for short-circuiting must be conductive. First, use the tweezers to touch both contacts, then plug in the USB cable. Please follow this order strictly, and check whether the RK app detects a new device before proceeding to the next step.
3. If flashing the 2.0.3 IMG file causes the screen to display garbled characters, please flash the 1.7.4 IMG file instead. You can then install the 2.0.19 app version to push the update to 2.0.3.
4. After upgrading the firmware app version to 2.0.3, you can update the Ulanzi Studio app to the latest version.
Hello, thank you for answearing
my D200 has a serial that starts with 02, the third method won't work?
I tried the first two and it didn't work.
tonirox 发表于 2026-6-26 23:58
Hello, thank you for answearing
Hello, if the serial number starts with 02, then Method 3 will not work.
We recommend that you contact the store’s customer service team and send them the results of your troubleshooting, as well as screenshots of the computer’s port display and the device’s screen after connecting the device, so they can provide technical support.
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