How to Change Casio W-217H Battery and AC Reset (Module 3454) | CR2016 Replacement

Is your Casio W-217H backlight dim or the screen fading? In this video, I'll show you how to easily replace the CR2016 battery yourself and perform the essential AC Reset to get your watch back to 100%. Timestamps: 0:00 Identifying a weak battery (Dim backlight) 0:19 Opening the case back 0:38 Removing the battery holder tab 0:54 Battery type: CR2016 1:12 Performing the AC Reset (Critical Step!) 1:32 Checking the gasket an 1:56 Reassembling the watch 2:08 Final result & Brightness check Don't forget to Like and Subscribe to Sam's Watch Review for more Casio maintenance tips! #CasioW217H #WatchRepair #DIY #CasioTutorial #CR2016 Note: - This video was shot some months ago, so the month and date are not the same as today - The resin band is not the original, I replaced it with 3rd-party AE1200 straps