Step 1:
Download and Install the “OTG USB Checker” app with the link below:
OTG USB Checker Download
Open the app and tap ‘Check Device OS’. This will test whether your phone or tablet has the USB OTG API or not.

Step 2:
OTG API is a code which is necessary for the support. If this API exists on your phone’s OS then the feature is fully supported by your phone. Tap ‘Check’ to proceed.
Check USB OTG Signal: Your device has loaded with USB OTG driver or kernel to communicate to the USB OTG Connected device?

Step 3:
Browse USB OTG Storage: Can you access (View) the USB OTG connected External Storage Folder?

Step 4:
The result indicated on the screen will be determined whether your mobile phone comes with OTG function capability.

