There are a few potential reasons why an SSD may not be showing up in Android through OTG (On-The-Go) connectivity. Here are a few possible solutions:
Check compatibility: Make sure that your SSD is compatible with OTG connectivity and that your Android device supports OTG. Some devices may require a specific type of OTG cable or adapter.
Power source: Check if your SSD requires additional power to operate. If so, you may need to connect the SSD to a power source before connecting it to your Android device.
USB settings: Ensure that your Android device's USB settings are properly configured to detect external storage devices. To do this, go to your device's Settings, select Storage or Storage & USB, and make sure that USB OTG is enabled.
Format the SSD: If your SSD is not formatted in a file system that is compatible with Android, it may not be recognized. Try formatting the SSD to exFAT or FAT32, which are file systems that are widely supported on Android devices.
Troubleshoot the SSD: If the above solutions do not work, try connecting the SSD to a computer to confirm that it is functioning properly. If the SSD is not recognized by the computer, it may be a hardware issue, and you may need to contact the manufacturer for further support.