[GenAI Prompt API] Feature Not Found Error (606) on OnePlus Pad 3

[suresh-ms-14121]

Describe the bug
I am experiencing a 606-FEATURE_NOT_FOUND error when running the ML Kit GenAI sample on a OnePlus Pad 3. This device is listed in the official documentation as supported for the Prompt API.

To Reproduce
1.Clone the mlkit repository.

2.Build and run the genai sample project on a OnePlus Pad 3.

3.Trigger a prompt request.

4.Observe the "Feature not found" error in the UI/Logs.

Expected Behavior:
The GenAI Prompt API should initialize and return a response, given the device is on the supported list.

Actual Behavior:
com.google.mlkit.genai.common.GenAiException: [ErrorCode 606. AICore failed with error type 3-PREPARATION_ERROR and error code 606-FEATURE_NOT_FOUND]

Smartphone:
Device: OnePlus Pad 3

OS: OxygenOS 16.0