![So I have this C80… but on fresh batteries, I can't seem to get any button to work, except the light. All others are unresponsive. I tried poking directly at the module So I have this C80… but on fresh batteries, I can't seem to get any button to work, except the light. All others are unresponsive. I tried poking directly at the module](https://preview.redd.it/1f88ox23bzy81.jpg?auto=webp&s=8095841919509c430c0e09cae372488fc242ee0c)
So I have this C80… but on fresh batteries, I can't seem to get any button to work, except the light. All others are unresponsive. I tried poking directly at the module
![Casio vintage lcd C80 MartyMcFly Back to Future Japan 80's for RM333 for sale from a Private Seller on Chrono24 Casio vintage lcd C80 MartyMcFly Back to Future Japan 80's for RM333 for sale from a Private Seller on Chrono24](https://cdn2.chrono24.com/images/uhren/23637522-fpr3qt1dzpwe58mm7b39onvl-ExtraLarge.jpg)
Casio vintage lcd C80 MartyMcFly Back to Future Japan 80's for RM333 for sale from a Private Seller on Chrono24
![Vintage Casio C-80 Ad] "Now for $75. The watch that replaces everything." (1975) [x-post from /r/vintageads] : r/Watches Vintage Casio C-80 Ad] "Now for $75. The watch that replaces everything." (1975) [x-post from /r/vintageads] : r/Watches](https://external-preview.redd.it/7wIPwqVt2lhB5TrFdClvhv7Vj7CIU9WInqLeG0hNIys.jpg?auto=webp&s=35687cd8b44efb597748e7fd41bbbdb054cc6644)