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If you have any questions or need help, please fill out the form below.

User support is available in Japanese and English.
For technical or warranty questions, please check FAQ page.

Known Issues with Gen3 Device

We have addressed the following issues in firmware version 1.0.3.
If you have not yet updated, please proceed with a firmware update.

  • Occasional device shutdowns or unexpected restarts
  • Detection of minor vibrations while locked

Even after a firmware update, the device may occasionally stop functioning.
We will continue working to improve and stabilize its performance.

If the device becomes unresponsive and cannot reconnect, try holding down the device button for 3 seconds to power it on, or press and hold for around 15 seconds to restart it.

If the device is detecting minor vibrations, consider adjusting the detection sensitivity to “Mid” or “Low.”

We are aware of an issue affecting some Android models where Bluetooth pairing may occasionally disconnect. If you see “Device Unregistered,” you can restore pairing by tapping the refresh button at the top right of the app.

[Resolved] Bluetooth Connectivity Issue in iOS App Version 2.3.10
A problem occurred for some users who updated to version 2.3.10 of the iOS app, where devices could no longer connect.
We sincerely apologize for the inconvenience caused.
This issue has been resolved in the latest version 2.3.11.
If you are already experiencing this issue after updating to 2.3.10, please follow the steps below to re-register your device:

  1. Perform a “Forced Release” in the app
  2. Remove “AlterLock3…” from your OS Bluetooth settings
  3. Re-register the device in the app

If the issue persists, please try a factory reset before re-registering the device.

Support Desk is closed during the following period.
We regret to inform you that our office will be closed during the following period.
May 3, 2025 (Sat.) – May 6, 2025 (Tue.)
Inquiries during the holiday period will be handled in order from May 7, 2025 (Wed.) onward.

Step 1 of 3
If you use a device, enter your app-registered email.

Outside of business hours (weekdays from 10:00 to 18:00 Japan time, excluding Saturdays, Sundays, and holidays), replies will be made sequentially on or after the next business day.
Note that we may take time to respond depending on the content of your inquiry.

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