How to get tungsten from a coin design vibration motor

You see the front and the back of the Sony Xperia M4 Aqua

Place the phone face down, and use a hair dryer or heat gun to heat the back Surface, to soften the adhesive.

Attach a suction cup to the back of the phone by pushing down on it near the top of the phone.

While Pulling on the suction cup, slide a thin object between the back cover and the phone. Slide it around the edges to break the adhesive seal.

Remove the back cover by pulling it from the phone

Take off the copperband

Unhook the battery connector

Pry the battery from the phone with a thin tool. There is a small amount of adhesive underneath the battery, so a bit of force is required

Remove the battery

Close to the bottom of the phone, unscrew the two phillips head screws

Remove the black plastic strip to reveal the speaker assembly and the vibrating motor. They are hooked underneath the circuit board beneath, force will be required to pry it out.

Unplug the microphone connector

Remove the whole module

If you flip over the module, you will see the cylindrical design vibration motor

Remove it from the module

Now you have the single vibrating motor

To get the tungsten, you have to open the metalcase

Erase the adhesive foil from the bottom metal housing

Open the metal housing by clamping the housing into metal pliers, see red dashed line

Get between the opened case with a thin screwdriver and remove the upper metal housing from the bottom metal casing

Here you see from left to right the upper metal housing, tungsten ring counterweight, wave spring, neodymium boron magnet, bottom metal housing with contacts and copper coil, adhesive foil

After removing the case, the tungsten ring is wedged on the bottom housing

Take off the tungsten ring with a sharp thin tool and withdraw the coil (using a pincer) which is mounted on the tungsten counterweight