
Emergency recording is the safety net of your 70Mai Dash Cam. While normal loop recording quietly overwrites old footage, emergency recordings and locked clips exist to protect the moments that matter most: sudden braking, collisions, near misses, or suspicious activity around your car. This guide explains what emergency recording is, how it works on your 70Mai Dash Cam, and how to manage locked clips effectively using your Android device.
1. What Is Emergency Recording on 70Mai Dash Cam?
Emergency recording is a special recording mode triggered by:
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A G-sensor event (hard impact, strong vibration, sudden deceleration).
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A manual action, like pressing an emergency/lock button or a specific control.
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Certain parking mode events, depending on the model and settings.
When an emergency event occurs, the dash cam:
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Creates a separate video file around the time of the incident.
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Marks it as locked or protected.
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Stores it in a special folder or with a flag so it will not be overwritten like normal loop clips.
This ensures you keep crucial evidence even if the SD card is nearly full or loop recording continues for hours after the incident.
2. How G-Sensor-Based Emergency Recording Works
The G-sensor is a built-in motion sensor that detects sudden changes in acceleration or direction.
2.1 Typical Triggers
The G-sensor may trigger emergency recording when:
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Your car is hit from the front, rear, or side.
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You brake very hard to avoid a collision.
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The vehicle hits a deep pothole or curb at speed.
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There is a strong vibration such as a minor impact while parked.
When the sensor detects a shock above the set threshold:
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The current video segment is locked as an event file.
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The dash cam may also include footage slightly before and after the impact, so the context is captured.
2.2 Sensitivity Levels
Most 70Mai Dash Cam models let you adjust G-sensor sensitivity in the settings:
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High sensitivity
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The dash cam reacts to smaller bumps and rough roads.
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More files are locked, even if they are not real emergencies.
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Medium sensitivity
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Balanced option for daily city and highway driving.
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Good starting point for most users.
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Low sensitivity
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Only stronger impacts trigger emergency recording.
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Reduces false alarms but may ignore very minor bumps.
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If you notice too many emergency clips caused by speed bumps or uneven roads, lower the sensitivity. If you feel real incidents are not being flagged, increase it one step.
3. Manual Emergency Recording and Locking Clips

Sometimes you will want to lock a clip even if the G-sensor did not react. This can happen in cases such as:
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Road rage or aggressive driving by someone else.
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Dangerous lane changes or near-miss situations.
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Interactions at checkpoints, toll gates, or traffic stops.
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Unusual or suspicious behavior around your vehicle.
Depending on the 70Mai model, you can manually trigger an emergency lock by:
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Pressing a physical button on the dash cam (often labeled or shown by an icon).
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Using a screen control (if the device has a display).
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In some models, using a voice command or a control in the Android app while connected.
When manually triggered:
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The current clip (and sometimes the surrounding time window) is converted to an emergency recording.
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It is marked as locked, just like a G-sensor event file.
This gives you control over what gets saved, beyond automatic impact detection.
4. How Locked Clips Are Stored and Protected
Locked clips are treated differently from normal loop recordings.
4.1 Separate Storage Category
The 70Mai Dash Cam usually separates files into different categories:
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Normal recordings – everyday loop files, overwritten as needed.
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Emergency/locked clips – protected files triggered by G-sensor or manual action.
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Parking mode events – often stored under a special event or parking folder.
Emergency files are:
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Saved in a special folder (often labeled “Event”, “Emergency”, or similar).
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Flagged in the file system so the dash cam knows not to overwrite them immediately.
4.2 Interaction With Loop Recording
Loop recording continues even when emergency clips are created:
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Normal loop files are still overwritten from oldest to newest as the card fills.
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Locked clips are skipped during overwrite until their dedicated space is also full.
However, emergency storage is not infinite. If:
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The SD card capacity is small, and
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A large number of locked clips accumulate and stay on the card,
Then the camera may eventually overwrite the oldest emergency files to make room for new ones. This is rare in typical use but can happen if you never delete or export old events.
5. Emergency Recording in Parking Mode

If your 70Mai Dash Cam supports parking surveillance and it is enabled, emergency recordings can also occur while the car is off and parked.
5.1 Impact and Motion in Parking Mode
In parking mode, the camera may:
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Wake up and record when the G-sensor detects a bump or impact (such as someone hitting your car).
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Start a short recording when motion is detected (depending on model and settings).
These parking events are often treated as protected clips, especially impact-related events, and stored similarly to emergency files.
5.2 Managing Parking Events
Parking events can fill up storage quickly if:
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Your car is parked on a busy street with constant movement.
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Sensitivity is set too high.
To balance security and storage:
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Adjust parking sensitivity to a level that captures real threats but ignores minor motion far from the car.
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Periodically review and delete unimportant parking clips.
6. Identifying Emergency and Locked Clips on the Dash Cam
On the dash cam itself, emergency/locked clips are usually marked visually:
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A lock icon on the screen when an event is triggered.
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A different label or category in the playback menu.
You can typically:
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Open the Playback or File menu on the dash cam.
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Switch between normal and emergency files using on-screen categories or filters.
Exact labels and icons vary by model, but locked clips are always made distinct so you can locate them quickly.
7. Finding and Managing Locked Clips via the Android App
The 70Mai Android app makes it much easier to manage emergency recordings without removing the SD card.
7.1 Connecting the Android App
Basic steps (exact names may differ slightly by model):
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Power on your 70Mai Dash Cam.
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Activate its Wi-Fi hotspot mode.
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On your Android device, open Wi-Fi settings and connect to the dash cam’s hotspot.
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Open the 70Mai app and connect to your dash cam from inside the app.
Once connected, you can access recorded videos directly.
7.2 Viewing Emergency and Locked Clips
Inside the app:
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Navigate to the Gallery, Files, or Videos section.
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You will typically see separate tabs or filters such as:
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“Normal”
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“Event” / “Emergency”
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“Parking”
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Select the Event/Emergency category to view all locked clips.
Each clip usually shows:
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A thumbnail preview.
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Timestamp and date.
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Sometimes an icon or label indicating it is a locked or impact-triggered file.
7.3 Downloading and Backing Up Emergency Clips
To protect critical evidence:
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Select the emergency clip(s) in the app.
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Use the download or save option to copy files to your Android device.
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Confirm that the clips appear in your phone’s local storage or the app’s internal gallery.
Once saved to your Android phone, the clip is safe from being overwritten on the SD card. You can then back it up further by:
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Copying it to a computer.
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Storing it on external storage.
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Keeping it in a secure, organized folder for insurance or legal use.
8. Deleting Old Locked Clips to Free Space
To keep emergency storage usable, you should occasionally remove old, no-longer-relevant locked files.
8.1 When to Delete Locked Clips
Delete emergency recordings that:
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Document very old minor events that are fully resolved.
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Were triggered by rough roads, speed bumps, or door slams with no actual incident.
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Are test clips you created while trying features.
Always double-check whether a clip might still be useful before deleting, especially if it relates to ongoing insurance claims or disputes.
8.2 How to Delete From Android
In the 70Mai Android app:
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Open the Event/Emergency section.
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Long-press or select multiple clips.
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Choose Delete or a trash icon to remove them from the SD card.
This helps:
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Keep emergency storage ready for new incidents.
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Ensure the dash cam does not reach a point where it struggles with full event folders.
9. Best Practices After an Accident or Serious Incident
If a collision or significant event happens, what you do with your 70Mai Dash Cam matters.
9.1 Immediate Steps
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Once it is safe, check that the dash cam is still powered and recording.
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If possible, trigger a manual lock to ensure the current clip is protected.
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Avoid turning the dash cam off aggressively or unplugging it in the exact moment of impact if it is still recording; let it finish the current clip.
9.2 Securing the Evidence
As soon as practical:
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Use the 70Mai Android app to download the relevant emergency clip.
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Also download additional clips before and after the main event, covering:
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At least a few minutes before the incident.
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Several minutes after, to show the aftermath and context.
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Save copies in multiple locations so they are not lost: your phone, computer, or external storage.
9.3 Avoiding Overwriting and Accidental Deletion
Until you are completely sure the case is resolved:
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Do not format the SD card.
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Do not reset the camera to factory settings.
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Do not delete emergency clips tied to the incident.
You can continue driving and recording, but prioritize protecting those specific files.
10. Troubleshooting Emergency Recording Issues
Sometimes users notice that emergency clips are missing or not working as expected. Common causes and tips:
10.1 No Emergency Clips After an Obvious Impact
Possible reasons:
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G-sensor sensitivity set too low.
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SD card error prevented proper saving.
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Power was lost exactly at the moment of recording.
Actions:
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Increase G-sensor sensitivity one level and test over a few days.
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Format the SD card using the dash cam’s menu, after backing up important files.
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Replace the SD card with a high-endurance, compatible model if errors continue.
10.2 Too Many False Emergency Clips
If almost every bump or pothole becomes an emergency file:
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G-sensor sensitivity is likely too high.
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Parking mode sensitivity may also be aggressive in busy areas.
Actions:
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Lower sensitivity in the dash cam settings.
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Regularly browse and delete false-event files via the Android app.
10.3 Locked Clips Not Visible in the App
If you know events were triggered (the camera showed a lock icon) but cannot see clips in the app:
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Make sure you are looking in the correct category (Event/Emergency, not Normal).
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Check that the app is properly connected to the dash cam and refreshed.
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If files still do not appear, remove the SD card and inspect it on a computer, if possible.
If the card shows errors, back up whatever is accessible, then format or replace the card.
11. Creating a Safe and Reliable Emergency Recording Setup
For reliable protection from your 70Mai Dash Cam:
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Use a high-quality, high-endurance microSD card.
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Set G-sensor sensitivity to a practical level (test and adjust).
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Enable parking mode only with suitable sensitivity to avoid storage overload.
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Connect the Android app periodically to:
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Download and backup important emergency clips.
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Delete old or irrelevant locked clips.
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Format the SD card from the dash cam menu every few weeks or months, depending on usage, after saving important events.
With these habits, emergency recording and locked clips will work as intended: always ready to capture and protect the moments that you cannot predict, but absolutely need recorded when they happen.