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Frequently Asked Questions

  1. What to do if I cannot receive the V3 update notification?
  2. Ensure the device is connected to Wi-Fi and the network is stable.
  3. Check if the system time is accurate (Settings > About Device > Language and Time); an incorrect time may prevent internet access.

  4. Retry "Check for Updates." If it still fails, contact AMOS official customer service for support.

  5. What issues can a time error cause?

  6. Unable to connect to Wi-Fi or the internet, with a "no network access permission" prompt.

  7. Correct the system time (Settings > Time). If connected to Wi-Fi, the system will sync with network time within 5 minutes.

  8. What to do if the device prompts "insufficient storage space"?

  9. iFace measurement data and reports are stored locally, which may take up significant space.
  10. Check device storage (Settings > Storage) and delete unnecessary files or apps.

  11. To clear measurement history, go to "Report History" and click the trash icon in the top right corner; note that this action is irreversible, so use with caution.

  12. What to do if the device runs slowly or lags?

  13. Check if too many apps are running in the background (Settings > App Management) and close unnecessary ones.
  14. Restart the device to free up memory.

  15. If the issue persists, contact iFace technical support, as cache cleaning or hardware inspection may be needed.

  16. What to do if I cannot connect to Wi-Fi?

  17. Ensure the Wi-Fi signal is stable and the device is not in airplane mode.
  18. Check if the system time is correct (an incorrect time can cause connection failure).

  19. Restart the device or reconnect to Wi-Fi. If it still fails, check router settings or contact the network administrator.

  20. What to do if the device prompts "camera permission not granted"?

  21. iFace requires camera permission to take photos.
  22. Go to "Settings > Apps > iFace > Permissions" and enable camera access.

  23. If a pop-up still appears on the homepage, check if permission was accidentally denied and reauthorize.

  24. What to do if the device prompts "install app permission not granted"?

  25. Updating the iFace version requires install app permission.
  26. Go to "Settings > Apps > iFace > Permissions" and enable "Install unknown apps" permission.

  27. If permission is enabled but the prompt persists, try restarting the device and updating again.

  28. Does a low Android system version affect iFace usage?

  29. iFace V3 comes pre-installed with Android 12, meeting usage requirements, and no intentional update is needed.

  30. Check the device system version (Settings > About Device > System Version). If an update is required, contact iFace technical support.

  31. What to do if the device restarts or crashes automatically?

  32. This may be due to insufficient system memory or iFace software conflicts.
  33. Close unnecessary background apps, restart the device, and retry.

  34. If the issue occurs frequently, contact iFace technical support for hardware checks or iFace reinstallation.

  35. What to do if the device battery drains too quickly?

    • Using the camera and AI operations may increase power consumption.
    • Lower screen brightness (Settings > Display > Brightness) and close unnecessary background apps.
    • Ensure the device is sufficiently charged; connecting to power during measurement is recommended.

  36. Does low or high screen brightness affect shooting?

    • Screen brightness does not affect shooting but may impact the operator's ability to view the frame.
    • Adjust screen brightness (Settings > Display > Brightness) to ensure the frame content is clearly visible.
    • If the environment is too dark, prioritize adjusting ambient lighting over screen brightness.

  37. Can iFace be used normally if the system language is set to non-Chinese or non-English?

    • iFace only supports Simplified Chinese and English interfaces (Settings > Language).
    • If the system language is another language, iFace may display abnormally; switch the system language to Chinese or English (Settings > Language and Input).

  38. Will measurement data be leaked if the device is lost?

    • iFace measurement data is stored locally and not uploaded to the AMOS cloud.
    • Data is unencrypted; if the device is lost, it may be accessed by others.
    • Set a lock screen password (Settings > Security > Screen Lock) and contact iFace technical support for remote locking (if supported).

  1. What to do if photo analysis fails?

    • Check if the QR code on the measurement frame or clip frame is clearly visible and unobstructed.
    • Ensure moderate ambient lighting, avoiding over-darkness (underexposure) or over-brightness (overexposure).
    • Adjust the subject's pose, avoiding significant head tilting, lowering, turning, or eye-closing.
    • Click "Retake" to reshoot; if it fails multiple times, adjust the device position or contact iFace technical support.

  2. What to do if I cannot hear voice prompts?

    • Ensure the device volume is set to maximum (bottom menu bar > speaker icon).
    • Check if the network connection is normal (voice prompts may rely on network loading).
    • If there is still no sound, contact iFace official customer service to troubleshoot hardware or software issues.

  3. What to do if the camera cannot focus and the image is blurry during shooting?

    • Ensure the camera lens is clean, free of dust or smudges.
    • Adjust the distance between the device and the subject's face (typically 15-25cm) to allow auto-focus.
    • If focus issues persist, it may be a hardware problem; contact iFace official support.

  4. What to do if the AI prompts "incorrect pose" during measurement frame measurement, but the subject appears aligned?

    • AI pose assessment may be affected by ambient lighting or background.
    • As long as the subject's face angle in the frame is relatively level (no significant tilting, lowering, or turning), shooting can proceed.
    • If prompts occur frequently, adjust lighting or background to reduce interference.

  5. What to do if the green dot is not visible during measurement frame measurement?

    • Older iFace devices lack a green dot; it is recommended to place a green or other colored dot 10mm above the camera to help the subject focus both eyes.
    • If a dot cannot be placed, instruct the subject to look at the camera and keep their head steady.

  6. What to do if the frame cannot be fully centered during clip frame measurement?

    • Clip frame measurement does not strictly require perfect centering, but the frame's middle bar should align with the center of the clip frame as much as possible.
    • Excessive left-right offset should be avoided; visual symmetry is sufficient.
    • If the offset is significant, it may affect measurement accuracy; readjust the clip position.

  7. How to re-measure after a measurement failure?

    • Failed measurement records are saved to "Report History".
    • Click the failed record; a prompt "Retry Measurement" will appear. Click "Confirm" to reuse saved data for re-measurement.
    • If the failure is due to a shooting issue, return to the shooting page to retake (usually due to an irregular side photo).

  8. What to do if the network disconnects during measurement?

    • AI calculations rely on a cloud-based model; a network disconnection may cause measurement failure.
    • Ensure a stable network connection, then click "Start Measurement" again.
    • Failed records are saved locally and can be retried later.

  9. What to do if the QR code is obstructed during shooting?

    • Ensure the QR code on the measurement frame or clip frame is unobstructed (e.g., by hair or hats).
    • Adjust the subject's pose to ensure all QR code points (7 front, 5 side for measurement frame; at least 2 side for clip frame) are clearly visible.
    • If it still fails, clear the obstruction and retake.

  10. What to do if a complex background causes shooting failure?

    • A complex background may interfere with AI recognition; enable "Complex Environment Detection" (Settings > Complex Environment Detection, recommended for V1 version).
    • Opt for a simple background (e.g., solid-colored wall) and reduce clutter.
    • If it still fails, adjust the device position or change the environment.

  11. What to do if the QR code reflection is not visible in the second front photo?

    • Adjust the subject's head height or angle to try seeing the measurement frame's middle QR code reflection in the black reflective mirror.
    • If it cannot be seen, the subject can focus on any object in the mirror, ensuring both eyes look in the same direction.
    • Prioritizing QR code reflection visibility yields the best results.

  12. What to do if the red circle size does not match the cornea during side photo calibration?

    • The red circle size does not affect calibration as long as its right edge aligns with the cornea's right edge.
    • Use the direction keys to adjust the position; long press for quick movement, short press for precise adjustment.

  13. What are the consequences of incorrect measurement frame gear adjustment?

    • Middle bar gears (15, 17, 19, 21), tilt gears (4°, 8°, 12°), and stake gears (0-4) must be adjusted strictly per AMOS prompts.
    • Incorrect gears can lead to deviations in pupil height, BVD, and forward tilt angle, affecting final lens fitting.
    • Carefully verify gear settings with AMOS system prompts before measurement.

  14. What are the consequences of entering an incorrect A value during clip frame measurement?

    • An incorrect A value (frame width) can lead to inaccurate pupil height and lens-eye distance, affecting lens fitting.
    • Ensure the A value is accurately obtained from the frame's temples or lenses and entered correctly.
    • If an error is found, re-measure and input the correct A value.

  1. How is report data stored?

    • Measurement reports are stored locally on the device and not uploaded to the AMOS cloud.
    • Deletion is irreversible; avoid deleting unless necessary.

  2. Can a deleted report be recovered?

    • The current version does not support recovering deleted reports.
    • Exercise caution with deletions; back up important reports (via printing or manual recording).

  3. Why is a blurred image required in the report?

    • Hardware-level frosted glass blurring is used to protect the subject's privacy.
    • The blurred image retains necessary visibility for store identification while being more display-friendly.

  4. Why does the report only require the last four digits of the phone number?

    • To protect privacy, only the last four digits are needed for store identification.
    • iFace does not validate or collect phone information; it is stored locally only.

  5. What to do if measurement data deviates from actual wear?

    • Ensure measurement follows AMOS prompts for gear adjustment (measurement frame) or accurate A value input (clip frame).
    • The subject's pose must be level, with device height between 90-120cm.
    • V3 version optimizes errors with AI; if deviations are significant, contact iFace technical support.

  6. What is the difference between far PD and near PD in the report?

    • Far PD: Pupil distance when gazing at a distant target, used for distance vision (e.g., myopia) lens fitting.
    • Near PD: Pupil distance measured at 30cm, used for near vision or reading lens fitting.
    • Pupil distance varies with gaze distance; future iFace versions will support more distance options.

  7. Why is there no temple length data in clip frame measurement?

    • Clip frame measurement targets existing store frames, where temple length is fixed and not measured.
    • Temple length data is only provided during measurement frame use for AMOS custom temple length guidance.

  8. How does the face width in the report differ from traditional face width?

    • iFace-measured face width is the opening data when wearing the frame, used to adjust temple spread.
    • It differs from traditional face width (distance between cheekbones), aligning better with lens fitting needs.

  9. Why does pupil height change after syncing data to AMOS?

    • Measurement frame pupil height is based on the AMOS measurement frame and is recalculated post-sync based on the user's chosen frame style in AMOS.
    • Recalculated pupil height better matches the final frame, ensuring accurate lens fitting.
    • Clip frame pupil height reflects the current frame's actual value and requires no recalculation.

  10. How to view the original photo?

    • After shooting, the default photo displays a frosted glass effect.
    • Click the "View Original" button at the bottom of the page to see the unblurred original.
    • The original is stored locally and not uploaded to the cloud.

  1. What is the difference between measurement frame and clip frame measurement?

    • Measurement Frame: Simulates AMOS system frames without physical frames, requiring gear adjustment with data calculated via algorithm.
    • Clip Frame: Measures existing store frames, requiring A value input and centered clipping.

  2. How to ensure correct measurement frame gear adjustment?

    • Strictly adjust middle bar gears (15, 17, 19, 21), tilt gears (4°, 8°, 12°), and stake gears (0-4) per AMOS prompts.
    • Incorrect gears can cause measurement deviations; verify carefully.

  3. What to do if the device height is inappropriate?

    • iFace device height should be 90-120cm to ensure the subject's head is vertical when seated.
    • Too low a height causes head lowering, too high causes tilting, both affecting accuracy.
    • Use a liftable stand or stool to adjust to the appropriate height.

  4. What to do if the chin rest adjustment is insufficient?

    • AI auto-adjustment is default (A button blue).
    • If AI adjustment is inadequate, use the "Up" and "Down" buttons for manual adjustment to keep the subject's chin steady.

  5. Should the side LED lights be turned on?

    • Default is off; turn on only in extremely dark environments.
    • Side shooting typically needs no fill light; excessive brightness may cause overexposure.

  6. What to do if the device heats up after prolonged use?

    • Prolonged measurement may cause normal heat generation.
    • Pause use to let the device cool, or ensure good ventilation.
    • If overheating is severe, contact iFace technical support for hardware inspection.

  7. What to do if the electric chin rest adjustment does not respond?

    • Check if the device is powered on and has sufficient battery.
    • Ensure no foreign objects are stuck; test by long-pressing the "Up" and "Down" buttons.
    • If still unresponsive, contact iFace technical support, possibly due to hardware failure.

  1. What to do if crashes occur after using Beta or Alpha versions?

    • Beta and Alpha versions have lower stability and may include unverified features.
    • Record the issue (e.g., crash time, steps), and contact AMOS for feedback.
    • Switch back to the Release version (Settings > System Upgrade > Test Version) and await updates.

  2. What to do if I cannot enable the test version after applying for an invite code?

    • Ensure the invite code is correct and not expired.
    • Check network connection, as invite code verification requires internet.
    • If it still fails, contact AMOS customer service to confirm invite code status.

  3. What to do if automatic updates fail?

    • Ensure a stable network and sufficient storage space.
    • Check if "Settings > System Upgrade > Auto Update" is enabled.
    • If it fails, try manually clicking "Check for Updates" to download the new version.

Other Issues

  1. How to view measurement tutorials?

    • Official measurement frame and clip frame tutorials are available at the bottom of the homepage; click to watch.

  2. How to apply for Beta or Alpha versions?

    • Beta and Alpha versions are disabled by default and require an AMOS invite code.
    • Go to "Settings > System Upgrade > Test Version", enter the invite code to enable.

  3. What to do if printing a report fails?

    • Ensure the printer is paired and connected (Settings > Wi-Fi Printer).
    • Check printer status (paper, ink, etc.) and retry printing.
    • If it still fails, contact iFace technical support.

  4. Does iFace support other languages?

    • Currently supports Simplified Chinese and English (Settings > Language).
    • Voice prompts support Mandarin, Cantonese, and English (Settings > Voice).

  5. Do measurement data comply with industry standards?

    • All iFace V3 measurement data comply with industry-standard error ranges.
    • AI technology optimizes manual operation and pose errors, but basic measurement requirements (e.g., level pose, correct gears) must be followed.

  6. How to contact iFace technical support?

    • Find official customer service contact details via the device "Settings" page.
    • Or visit the AMOS official website for technical support channels.

  7. Does iFace support offline measurement?

    • Shooting and calibration can be done offline, but AI calculations require internet (relying on cloud models).
    • If no network is available, save shooting data and measure later when online.

  8. Can report data be exported to other devices?

    • The current version does not support direct export.
    • Reports can be printed or manually recorded and transferred.
    • Future versions may add export functionality; stay tuned for updates.

  9. Do measurement frames and clip frames need regular calibration?

    • Measurement frames and clip frames are precision devices; regularly check if gears or clamping mechanisms are loose.
    • If measurement data anomalies are found, contact iFace technical support for calibration.

  10. What is the difference between AMOS custom glasses and smart glasses?

    • MODUL X Series: Custom glasses with a frameless design and CET craftsmanship, emphasizing lightweight, comfort, and personalization.
    • STEPPER Smart Glasses: Includes Standard, Pro, and Pro+ versions with voice, gesture control, and AI features, focusing on smart experiences.
    • Both support customization but differ in purpose and functionality.

  11. Do STEPPER smart glasses support customization for all users?

    • Yes, all STEPPER smart glasses (Standard, Pro, Pro+) support personalized customization.
    • Customization options include materials and colors, with details available via the AMOS system.
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