Hello,
I bought a defusable clock 6 month ago.
It was working very well since, but last sunday when I turned it on, it only displayed “8” on the second digit and nothing was working anymore.
When I turn it off and turn it on pushing on button it dislay 6, 0 or other numbers depending on which button I’m pushing on.
That’s strange behavior. Is there anything causing connections on the back of the board to short out? Are you touching the back of the board, especially near the crystal?
Feel free to send pictures of the back of the board so I can have a look.