Opening a camera preview is only the beginning of a reaction session. The phone also needs a usable view of you, and any footage you hope to recover must already be available to the capture system. Fesi’s readiness messages help you check those conditions before the moment you want to keep.
This guide explains the checks inside Reaction Mode. It is separate from choosing a replacement background or editing an existing recording.
Read the message rather than relying on the preview
Start Reaction Mode and look at its capture-readiness information. Depending on the platform and current state, Fesi can show camera availability, person framing, lighting, microphone status and preparation of recent footage. The exact labels differ between iOS and Android.
A visible preview alone does not tell you that every part of the capture workflow is ready. Give the session time to initialize and act on the specific message shown. If the camera is unavailable, address camera access first rather than changing reaction sensitivity.
Respond to framing guidance
On Android, “Move into view” asks you to keep your face and upper body visible. “Face ready” can appear when the face is visible but the app would benefit from more upper-body framing. Move back slightly to include shoulders and hands when that guidance appears.
Use your normal viewing position for this check. A setup that works while you lean toward the phone can change when you settle back into the sofa. If standing up is part of your usual reaction, check that movement before the session rather than assuming it will stay inside the frame.
Check light and sound separately
A low-light message is a reason to improve the image, even if another detection signal remains available. Make sure your face can be seen in the preview at the brightness you plan to use during the session. Readiness is guidance, not a guarantee that every expression will be detected.
Also check microphone availability if you want room audio. Android can indicate silent capture when microphone access is unavailable. A playable video can therefore still lack the conversation or cheer you expected. Listen to a test clip; do not infer audio capture from a moving picture.
Allow recent-footage capture to prepare
Fesi’s recent-moment workflow depends on footage already held by an active session. It cannot recover an event that happened before the camera was running. Where the platform shows pre-roll preparation, wait for that state to settle before relying on recent-moment capture.
The Save Recent Moment guide explains the manual control and its limits. A readiness check and a manual save solve different problems: one helps you prepare, while the other preserves available footage.
Make one short rehearsal
- Start the session from your actual seat and read the readiness message.
- Make a brief expression and upper-body movement that stays within the preview.
- Complete the capture and open the result in your Library.
- Check the opening, movement and sound before beginning the important session.
Keep Fesi active during capture. If the rehearsal reveals a problem, fix that condition and repeat the short test. For a recorded clip that starts late or is not a reaction, use the detection-feedback labels to describe the result, alongside checking the physical setup.