Power off the phone. Take out SIM card tray. Undo two small T2 screws. You need two plastic opening tools. Slide the tool to open a gap. Be careful not to scratch the metal rear cover. Then insert another tool. Keep sliding. Then you can see a gap here. Be careful not to scratch the metal rear cover. Then pry up the rear cover on the bottom of the phone. Keep prying up. Similar to iPhone here. Slide the plastic tool to separate the side of the rear housing. Mind the power button. Take you efforts. The same on the other side. Need some time to remove it. There is no adhesive. After slide along the rear housing cover. You can separate the rear housing and the front screen assembly now. Undo 2 Phillips screws. Remove the metal shield. Check the ring silent switch on the right position. Now you can remove the switch. Pry up the vibrator. Loosen the adhesive under the cable flex here. And remove the switch. Keep this rubber here. Remove the black tape to the new replacement. Switch the button to the middle. Put the cable flex in place. Peel the film off. Fit the vibrator well. Then stick the cable flex to the rear housing. Fit the switch well. Put back the metal button. Put back the metal cover shield. Fasten 2 Phillips screws. Put the screen assembly back to the rear cover panel Put the top side in first Pinch down two sides. Don’t put too much pressure on it in case you broken the screen. Mind the button. Pinch down the bottom Check whether the screen works well by power on the phone. Check the ring silent switch and the volume buttons. It works well. And the power button. Fasten two T2 screws at the bottom in place. Put back SIM card tray.