Change one thing at a time and repeat a short test. Record the app version and mode before changing settings so the result can be reproduced.
Check both translation models and offline speech recognition support for the chosen pair. Initial model download and subscription activation must be completed online.
Check the installed app version, device, iOS 27+/Apple Intelligence requirements, separate consent and Apple quota. Do not assume an iOS 26-capable device supports this mode.
Treat live text as provisional until the turn is complete. Pause before the other person responds and verify important terms.
Check microphone permission, the active audio route, interruptions and the session state. Restart a short test rather than continuing a conversation with missing input.
Use shorter turns, reduce background speech and confirm the chosen languages. Online modes also depend on connectivity and service availability.
Check which mode is active. Both documented online modes consume credits; On Device is the zero-credit mode. End unused sessions.
If the issue persists, include a sanitized reproduction and the observed result in a support request. Do not infer the cause from a single failed test or switch to a different processing mode without checking its data handling.
See privacy and support.
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Reviewed 2026-11-04 against public product materials. Interface wording and availability can change with the installed version.