What version of Firmware did you upgrade to? V2. 12.114 had issues that broke some clocks. Try 2.12.115
@HughB started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
What version of Firmware did you upgrade to? V2. 12.114 had issues that broke some clocks. Try 2.12.115