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Open the back cover.
Lift and remove the battery.
Using a screwdriver (Phillips 1.5 mm PH000), unscrew 11 bolts in the frame of the phone.
Remove the cover hiding the connector.
Pry up the display module connector.
Separate the display module from the cover.
For careful separation, we recommend using a heat gun. At the same time, it is necessary to heat carefully in order, not to damage the surface of the device.
Pry and remove the middle frame.
Disconnect the connector on PCB, and remove the front (selfie) camera.
Disconnect the connector on the PCB.
Using a screwdriver (Phillips 1.5 mm PH000), unscrew 2 bolts in the PCB.
Remove the PCB.
Parts are in the frame of the display module.
Detailed disassembly instructions of Samsung Galaxy J4 SM-J400 in the video, made by our mobile repair & service center:
Senior maintenance service and repair engineer
Disassembling\Repair has medium complexity and takes about 13 minutes in time. Our manual is suitable for all models Samsung Galaxy J4 SM-J400 — Samsung Galaxy J4 J400F/DS (Global DS); J400G/DS released for markets in different countries.