Core Assembly Removal

Written By: Tobias Isakeit

Comments: 3

Difficulty

Moderate

Steps

Time Required

10 - 20 minutes

Introduction

Use this guide to remove the core assembly in the Samsung Galaxy Watch3.

Tools

Step 1

Before starting repairs, take your watch off the charger and power it down.
Use a Tri-point Y00 driver to unfasten the four screws on the back of the watch.
Don’t worry about removing the screws, they will stay in place in the back cover.

I heeded your advice - and now need another screw because it fell out!!!

Paul -

I must have stripped the screws out or either the dirt and sweat is so packed into the screw i can't get a good bite to unscrew the screws. What can I do about this? This watch battery DOES NOT hold a charge for more than 5min, should I trash the watch?

ShaneWizdum -

Step 2

Insert an opening tool between the back cover and the metal housing.
Twist the opening tool to create a wider gap.
Don't fully remove the back cover just yet. The sensor flex cable is still connected to the motherboard.

Could not get the back housing off

Joseph Ortiz, Jr -

Step 3

Lay the watch face down.
Carefully lift the back cover up from the edge with the buttons to access the sensor connector.
Use the flat end of a spudger to pry up and disconnect the sensor flex cable from the motherboard.

Step 4

Remove the back cover.
Make sure the rubber gasket (marked red) is undamaged. If damaged replace it with a new one during reassembly to maintain proper water resistance.

Step 5

Use the flat end of a spudger to pry up and disconnect the display flex cable from the motherboard.

Step 6

The core's plastic frame fits tightly within the watch's metal housing.
Place the corner of the flat end of a spudger in the small opening of the barometric sensor, on the opposite side of the display connector.
Twist and tilt the spudger to lever the core assembly out of the metal housing.