Ngrave updates ZERO wallet firmware to 1.8 with open-source QR protocol and Polygon token support

Ngrave released firmware version 1.8 for its ZERO hardware wallet, introducing a new open-source Universal QR Protocol that replaces its legacy QR system, enhancing transparency and security. The update also expands token support on the Polygon network, adding major tokens like USDC, USDT, WETH, and more. Additionally, it improves fingerprint sensor reliability and removes over 100 inactive tokens. This move positions Ngrave competitively by emphasizing transparency and security in hardware wallet communications.