# Identifying the input resolution

The AV.io Config tool can help you figure out exactly what information your video source is sending. Plug in the source and select your device. The UI detects information about the source and presents it at the bottom of the window. The line shows the exact resolution of the source and the frame rate the source is outputting.

### AV.io SDI+ troubleshooting

| **Symptom(s)** | **Action(s) to resolve** |
| --- | --- |
| Device not detected after interrupted firmware update | (Windows only) When in the config tool press F12 to enter firmware recovery mode, then select a firmware file and click update to forcibly reflash the capture card. |
| Applications cannot open the capture card when a custom UVC mode is set | Please make sure that the card is connected via USB 3.0 for all modes to be valid; only low frame rate modes are valid when connecting via USB 2.0 |
| Device does not appear in the Epiphan Capture Tool | The Epiphan Capture Tool works only with the DVI2USB and DVI2PCIe capture cards; it is not compatible with AV.io SDI+ or any other card. Use the AV.io SDI+ Config tool for configuration and any UVC-compatible application to capture. |

**Limitations and known issues**

#### Affecting Asmedia USB 3.0 controller ASM3142

- There is an issue that presents as an audio problem when using this USB 3.0 controller

- **Workaround:** Update the driver for the USB controller

#### Affecting systems with an AMD Ryzen 7 CPU

- There is an issue that presents as an audio problem when using older drivers

- **Workaround: **Update the chipset drivers for your CPU

**Purchasing**

AV.io SDI+ can be purchased directly from the Epiphan website at [epiphan.com](https://www.epiphan.com/).

> product: avio-sdi-plus · topic: specs-ports · source: avio-sdi-plus-userguide.md · updated: Oct 13, 2026