There is no way to upgrade the firmware. Very adorable earrings. The quality is decent, the look is decent, the feel is decent, and all these decency is under $20! By the time I got home my feet were NOT killing me. People can?t believe they?re crocs! If youre as tough on equipment as I am, buy these! I initially thought the connection from the endoscope wasnt compatible to the phone after trying to connect it but if you push hard enough, it does fit. Itll prompt you in the app. I like the product, but I would like it even better, if it was longer. I bought it 2 months ago.