MeXkey3 Changelog#

MeXkey3 Firmware

MeXkey3_NRF Firmware

MeXkey3 Firmware#

MeXkey3 Firmware Upgrade Tutorial

v1.3.3#

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This version requires updating MeXkey3_NRF to version 1.3.0

• Optimized NFC functionality
• NFC FIDO largely completed
• NFC Smart Card usable (tested with Android app OpenKeychain)
• Added function to transfer entire entry (QR, NFC)
• Optimized transmission of large data via NFC tags
• Optimized password hiding feature; passwords are now also hidden in new entries

v1.3.2#

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• Added English language support; reboot required to take effect after switching language.

v1.3.1#

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• Reverted ESP_IDF back to 5.5.1 to fix the issue where the device cannot wake from sleep.
• Optimized backlight.
• Disabled switching to USB mode while kdbx is loading.

v1.3.0#

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• Added Emergency Mode.
• Added Duress Mode.
• Added Change PIN function.
• Modified settings layout.
• Upgraded ESP-IDF to version 5.5.2.

v1.2.2#

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• Added temperature display.
• Added short press confirmation function for physical buttons (only supports verification confirmation).
• Added time drift switch (enabling will automatically correct time errors, but may increase error margin).

v1.2.1#

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• Added NDEF write protection switch in Smart Card.
• Long press on entry page to generate QR code or share via NFC tag (NFC tag requires "BT+NFC" turned on).
• Changed new entry page to edit content via left swipe + tap.
• Added switch to disable random PIN pad layout.
• Upgraded ESP-IDF to version 5.5.1.

v1.2.0#

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This version requires updating MeXkey3_NRF to version 1.2.0

After upgrading to this version, it is recommended to factory reset, including Smart Card.

• Completed FIDO NFC functionality (Test site: https://webauthn.io/).
• Added NFC tag function.
• Optimized factory reset process.

v1.1.9#

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• Removed DNS service to avoid interfering with computer network.
• Optimized FIDO.

v1.1.8#

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• Fixed the issue where MeXkey3 USB is not recognized on some devices after unlocking.

v1.1.7#

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• Further USB optimizations.

v1.1.6#

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• Optimized USB.
• Optimized FIDO prompts.

v1.1.5#

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• Optimized FIDO prompts.

v1.1.4#

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• Optimized FIDO certificate generation (does not affect existing FIDO, takes effect after selecting FIDO Clear Data in the Smart Card menu).
• Optimized USB power configuration.
• Optimized some KPH errors. Browser plugin can only connect after MeXkey3 loads the kdbx file.
• Added blue battery icon display when battery protection is active.

v1.1.3#

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• Fixed ed25519 public key certificate generation error.
• Optimized card initialization.
• Fixed factory reset error.
• Fixed chameleon automatically starting on boot.

v1.1.2#

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Emergency bug fix release.

• Fixed chameleon menu communication error.
• Fixed error when no files are displayed in the script menu.
• Optimized no Kdbx prompt.
• Fixed issue where RTC required time resetting after setting the time zone.

v1.1.1#

Download Link

This version requires updating MeXkey3_NRF

Test BADUSB script download payload.txt, only supports Windows systems. Switch to English input method before using the script.

• Added BADUSB script function.
• Removed key parsing.
• Optimized NRF chip startup, reduced startup current.
• Lowered automatic shutdown voltage to increase usage time.
• Optimized Kdbx parsing.
• Added manual time setting.
• Added Chinese file name support (kdbx can now use Chinese file names).
• Optimized USB HID communication.
• Optimized Bluetooth HID communication (keyboard speed slowed down).

v1.1.0#

This firmware version has bugs

• Added create new entry function.
• Optimized OpenPGP, can generate RSA4096 on the card.
• Fixed freeze issue when setting time zone and IP.
• Changed chameleon polling to interval time setting.
• Optimized USB HID input.
• Upgraded ESP-IDF to version 5.5.

v1.0.3#

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• Added time zone setting.
• Added IP address setting.
• Optimized browser plugin data filling error.
• Fixed setting inconsistency between settings menu and main menu.

v1.0.2#

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• Fixed bug where device would lock screen shortly after unlocking.
• Optimized RTC workflow.
• Optimized upgrade and factory reset processes.

v1.0.1#

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• Fixed random crash issue.
• Fixed issue where factory reset was ineffective.
• Slightly reduced maximum brightness.

v1.0.0#

• Initial version.

MeXkey3_NRF Firmware#

MeXkey3_NRF Firmware Upgrade Tutorial

v1.3.0#

• Chameleon upgraded to V2.1

• Optimized NFC communication

  下载链接

v1.2.0#

• Optimized NFC communication.

  Download Link

v1.1.1#

• Optimized Bluetooth HID communication.

  Download Link

v1.0.0#

• Initial version.

  Download Link