Firmware updates for the C-Pen Reader 3 and C-Pen Lingo 3

Lingo 3 / Reader 3 firmware update & release notes

Lingo 3 and Readercan be updated by two methods.

The easier and more convenient method is over-the-air (OTA). This requires Wi-Fi to be turned on and connected to a network.

Make sure Date & Time on your Reader 3 / Lingo 3 are correct. Otherwise OTA may fail.

The alternative method is to connect the pen to a computer using the USB cable included in the box.

Any standard USB cable will work, but some USB cables are designed only for charging. A charge-only cable will not work.

Over-the-air (OTA)

Firmware is updated via Wi-Fi.

Press BACK a few times until the display shows the main menu.
Press the M button to open the quick menu.
Tap the Wi-Fi icon to open Wi-Fi settings.
If Wi-Fi is off, tap the toggle in the upper-right corner and turn Wi-Fi ON.
Scroll to find your preferred network, then tap it.
When prompted, use the keyboard to enter the password.
Tap the confirmation button in the upper-right corner and wait for Wi-Fi to connect.

Press BACK a few times until the display shows the main menu.
Use the touch screen or buttons to move to Settings on the far right.
Tap Settings, or press the OK button.
Scroll to System Settings, then tap it or press OK.
Scroll to Software upgrade, then select it by tapping the screen or pressing OK.
Confirm that you want to upgrade.

Battery requirement: The battery level must be above 50% to complete the update.

Video: Watch the OTA video.

Using a USB cable

Wi-Fi MUST be disconnected.

Connect the pen to your computer using the USB-C cable, then select U-Disk on the pen. The pen should appear as a portable disk on your computer.
Download and unzip the latest software.
Eject the pen's U-Disk from the computer.
On the pen, go to Settings → System Settings → Software update.
Confirm the update and wait for the pen to reboot.

Release notes

This quality and usability release improves connections, localisation, OCR, and the reading experience.

New and improved: Bluetooth keyboard support makes it easier to transfer scanned text to compatible devices.
Improved: German spoken prompts, assistant text, volume labels, and Wi-Fi guidance are more accurate and natural.
Improved: OCR for Twinkl and Letterjoin fonts, text layout in Reader, and text-to-speech pronunciation of common abbreviations.
Improved: Wi-Fi handling for network names containing punctuation, automatic time synchronisation, UTC offset handling, and USB compatibility with newer host ports.
Improved: American English voice pronunciation.
Note: Bluetooth keyboard compatibility may vary by host device while broader validation continues.

This release adds voice input and language support while strengthening exam-mode controls, connectivity, and update reliability.

New: Voice input is available in the Reader app and Vietnamese has been added to the text-language lists for Reader, Definition, and Translate.
Improved: OCR recognition for letter-join fonts, translation controls in Exam Lock Mode, over-the-air updates, and overall performance and stability.
Improved: WPA2 Enterprise Wi-Fi support enables connection to more secure school networks.
Exam mode: Voice input is disabled when Exam Lock Mode is active, and text-to-speech no longer reads Roman numerals from 1 to 39.

This release improves everyday reading, translation, dictionary use, and Wi-Fi reliability.

New: The Wi-Fi MAC address is now shown in System Information.
New: A short press of the microphone button opens Recorder, while a long press starts voice input.
Improved: Added a new Arabic font, clearer dictionary formatting, better Wi-Fi handling, improved voice recognition, and general user-interface refinements.
Fixed: Several dictionary issues, including missing inflected words, duplicate entries, and problems finding accented French words.