How to use OTG USB mode to transfer audio files in Notique Android App? – FAQ

When you use the Notique AI App to import larger recording files, transmitting via wireless transfer is usually slower due to the use of the BLE transmission protocol. To provide a more efficient experience, Notique AI Voice Recorder (Model: DVR-611) supports OTG USB transfer mode starting from App version V1.4.

This FAQ will guide Android users on how to quickly import recording files into their phones through an OTG wired connection.

Select Transfer Method

Open the Notique AI App, then tap "Import from Recorder". Two import methods will pop up at this time:

USB-C Transfer (OTG)
Wireless Transfer (BLE)

Please select the "USB-C Transfer (OTG)" transfer method.

Please follow the steps below to operate:

Step 1: Connect Hardware

Rotate the protective cap at the top of the DVR-611 voice recorder counterclockwise to remove it, exposing the USB-C interface, and plug it directly into the charging port at the bottom of the Android phone. Once you have confirmed it is securely plugged in, tap the "Next" button.

Step 2: Select Recording Files

Open the Notique AI App and tap "Start Transfer" on the manual import page. The system will automatically open the built-in Android file manager. Please perform the following operations in order:

Tap the ☰ Menu button on the screen.
Find the device named DVR-611 in the device list and tap to enter it.
Enter the "Record" folder.
Tap the recording file you want to transfer, and tap the "Select" button.

After completing the above selection and allowing the system access, the web page or App will automatically redirect back to the Notique AI interface and begin high-speed file transfer.

🛠️ Troubleshooting Common Errors (FAQ)

If you encounter abnormal situations while operating the above three steps, please refer to the following countermeasures for troubleshooting:

Troubleshooting for [Step 1]

Q1: After tapping the ☰ Menu in the upper left corner, I don't see the DVR-611 device?

Possible Cause: The system needs a few seconds to mount the external device.
Countermeasure: Please wait for 5–10 seconds after plugging it in and check again. If it still does not appear, check whether the voice recorder is fully and tightly inserted into the phone's charging port, or try unplugging and re-plugging it.

Q2: The voice recorder is fully inserted, but the phone does not detect the new device at all?

Possible Cause: Some Android brand phones (such as OPPO, vivo, realme, OnePlus, etc.) disable the system's USB OTG connection feature by default.
Countermeasure: Please go to the phone's "Settings" > search for "OTG", and manually turn on the "OTG connection" or "USB OTG" feature. After enabling it, please re-insert the voice recorder into the phone.

Q3: The voice recorder cannot be fully inserted into the phone, or it disconnects with a slight touch?

Possible Cause: The external phone case or shockproof case is too thick, causing the charging port opening to block the USB-C connector from fitting tightly.
Countermeasure: Please remove the phone case first, and try plugging the voice recorder directly into the phone's charging port to ensure good contact.

Troubleshooting for [Step 2]

Q4: After redirecting to the system file screen, I can't find the ☰ Menu icon in the upper left corner?

Possible Cause: Built-in file managers from different Android brands (such as Samsung, Google Pixel, Xiaomi, etc.) have different UI designs. Some systems take a few seconds to mount the external device before the ☰ Menu icon appears.
Countermeasure:
- Please wait for 5–10 seconds after plugging it in and check again.
- If there is still no ☰ icon, please look for "View other locations", "Storage", or "Browse" on the screen, or look directly in the sidebar or drop-down menu for an external device named DVR-611.

Q5: After clicking into the DVR-611 device, I can't find the "Record" folder, or the folder is empty?

Possible Cause: No valid recordings have been saved in the voice recorder yet. According to specifications, the duration of a valid recording must exceed 5 seconds (less than 5 seconds will be treated as an accidental touch and will not be saved).
Countermeasure: Please unplug the voice recorder first, slide the switch down to perform a test recording of more than 5 seconds, and then slide the switch up to power off and save the file. After confirming that there is a valid file in the voice recorder, re-insert it into the phone to operate.

Q6: After clicking the "Select" button, the App shows that the transfer failed?

Possible Cause: When you select a folder, the Android system will pop up a privacy permission prompt (for example: "Allow App to access files on this device?"). If you accidentally tap "Deny", the App will not be able to read the files.
Countermeasure: When the system pops up a permission request, please be sure to tap "Allow". If you previously accidentally tapped deny, please close the Notique AI App completely, unplug and re-plug the voice recorder, follow the steps again, and grant authorization.