--- title: LED Board Screen Calibration using LED Studio description: Step-by-step guide to restore LED screen calibration using LED Studio for CommBox Gen 2. Includes connection, admin login, reload, save, and reboot process. --- [Skip to content](https://support.commbox.com.au/knowledge/led-board-screen-calibration-using-led-studio#main-content) English Show submenu for translations [Log a ticket](https://support.commbox.com.au/knowledge/kb-tickets/new?hsLang=en) [Customer portal](https://support.commbox.com.au/portal?hsLang=en) [![CBOX Final Logo RGB 02-1](https://support.commbox.com.au/hs-fs/hubfs/Logos/CBOX%20Final%20Logo%20RGB%2002-1.png?width=300&height=60&name=CBOX%20Final%20Logo%20RGB%2002-1.png)](https://www.commbox.com.au/) - [Knowledge Base](https://support.commbox.com.au/knowledge) - [System Status](https://commbox.betteruptime.com/) - [Training Hub](https://www.commbox.com.au/training-hub) - [My Tickets](https://support.commbox.com.au/portal) Open main navigation Close main navigation - [Knowledge Base](https://support.commbox.com.au/knowledge) - [System Status](https://commbox.betteruptime.com/) - [Training Hub](https://www.commbox.com.au/training-hub) - [My Tickets](https://support.commbox.com.au/portal) - English Show submenu for translations - [Log a ticket](https://support.commbox.com.au/knowledge/kb-tickets/new) - [Customer portal](https://support.commbox.com.au/portal) - [Book Training Now](https://www.commbox.com.au/book-training) [Book Training Now](https://www.commbox.com.au/book-training) How can we help you? - There are no suggestions because the search field is empty. 1. 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[CommBox LED Board - Gen 2](https://support.commbox.com.au/knowledge/commbox-led?hsLang=en#commbox-led-board-gen-2) # LED Board Screen Calibration using LED Studio ## This article will guide you through the step-by-step process of calibrating the screen after replacing modules using the LED Studio software. **Applies To** CommBoxLEDBoard Gen1 CommBox LED Board Gen 2 Elite & Ultra Series (All sizes) **Step-by-Step Instructions** 1. **Connect Your PC to the LED Screen** - Connect a LAN cable from your PC to the control board of the LED screen using the port labeled **“To PC.”** 2. **Install and Launch LED Studio** - Download and install the **LED Studio** software on your PC. *(https://supportfiles.commbox.com.au/file/commbox-support-files/software/LED/LEDStudio/LedStudioV4.9.0\_Setup\_offline.exe?Authorization=3\_20250724234220\_aa3569e403b1387c7a94e170\_e509d7056b073c15ebbd2c60554d6c52206c968e\_004\_20250731234220\_0056\_dnld)* - Launch the software once installation is complete. 3. **Detect the LED Screen in LED Studio** - From the Sending Card list, select the LED screen. - If the screen doesn’t appear, unplug the LAN cable from the “To PC” port and reconnect it to the **Network port** on the LED screen. 4. **Access Admin Mode** - Click the **admin icon** (top-right corner beside the settings gear). - Enter the password: `ledcontrol` - On the right-hand tab, click **“Connect”** - Confirm that the **Device status** shows "Connected" (not “Standby”). 5. **Manual Calibration Data Readback** - Navigate to the **“Correct”** tab in LED Studio. - Ensure **“Correct” is ON** and **“ByPass” is OFF** - Click **“Reload”** – this forces the system to manually read the calibration data from the modules. 6. **Save Calibration** - Once the screen looks uniform and colours appear correct, click **“Save”** to store calibration data on the device. 7. **Power Cycle the System** - Turn off the screen and unplug it from the GPO (power socket). - Wait for **20 minutes** - Plug it back in and power it on. - The screen should automatically load the saved calibration data and display normally. 8. **Repeat if Necessary** - If the display still doesn’t appear normal, repeat the entire process up to **2 more times**. **Troubleshooting / What to Do If It Doesn’t Work** - **Device not appearing in LED Studio:** - Try switching the LAN connection between the “To PC” port and the Network port. - **LED screen stuck in Standby:** - Check physical network connection and ensure the LED screen is powered on. - **No visual improvement after reload:** - Retry the Reload and Save steps. 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