: Unclip the metal cage holding the LCD to the circuit board. You may need to flip the PCB over to see the traces.
: If not done perfectly, air bubbles can form, or the oil may eventually leak and ruin the buttons or the gasket. 4. External Upgrades: Straps and Protection
It eliminates internal reflections, making the screen legible from extreme angles, even underwater. It also theoretically improves the watch's depth rating by making it incompressible. YouTube
: On the right side of the board (near the buttons), you will see a column of solder pads. Look for a closed solder jumper (a small blob of solder connecting two pads).
: You likely forgot the AC Reset . Open the back and short the AC contact to the battery.
: Before reassembling, use tweezers to short the point marked "AC" and the positive side of the battery for two seconds. This "reboots" the software to recognize the newly enabled feature. YouTube
: This involves peeling off the original polarizing film from the LCD and replacing it with a new film rotated at a 90-degree angle. This turns the screen black with light-colored digits. N-O-D-E
: Put the module back in the case and scroll through the modes. You should now see a TR (Timer) mode following the stopwatch. 2. Visual Overhaul: Negative Display & Color Filters