CASIO EDIFICE EFA-115 battery replacement (where is AC, how to start watch with new battery) - YouTube
How To Change Battery with AC Reset a CASIO G-Shock GA-100CF Watch | SolimBD | DIY | How To Change Battery with AC Reset a CASIO G-Shock GA-100CF Watch | SolimBD
How to change G-Shock battery and set home positions of hands | G shock, Casio, Battery