Teardown difficulty:
Moderate
Duration:
12 min

Recommended tools

Disassembly/Repair of the mobile device Samsung Galaxy A50 SM-A505 (Samsung SM-A505F/DS, SM-A505FN/DS (Global); SM-A505GN/DS, SM-A505FM/DS, SM-A505YN) with each step description and the required set of tools.


Author, currently - Quality Assurance Specialist


How to disassemble Samsung Galaxy A50 SM-A505, Step 1/1 How to disassemble Samsung Galaxy A50 SM-A505, Step 1/2

Step 1. Remove the tray

Use the ejection tool (aka Needle) or Paperclip. Push the tip all the way into the hole until the tray ejects, and then pull the tray of SIM and Memory card (Micro SD) out.

⚠ī¸ Pay attention! The tool must be inserted into a hole on the edge of the phone's housing. Do not press too hard. It may break the tray eject mechanism.


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Step 2. Open the back cover

We recommend using a special heating device such as a separator machine, heat gun, or heating mat. It will simplify the process. You can use a home hairdryer, but you will have to make a nozzle by hand or have a suitable one in the kit to gently heat and concentrate the heat flow in the right place.

ℹī¸ī¸ The surface of the back cover must be heated to soften the adhesive underneath. The approximate heating temperature is 50° C / 125° F.

Use a thin plastic film or pick for separation. To facilitate the process, you can use isopropyl alcohol. It is often most difficult to pass the tool between the parts to be divided. Choose the far edge from the FFC cables or buttons.

Do not use a lever or any force for separation that could damage the elements inside.


How to disassemble Samsung Galaxy A50 SM-A505, Step 3/1 How to disassemble Samsung Galaxy A50 SM-A505, Step 3/2

Step 3. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 13 screws.


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Step 4. Open the middle cover

Remove the cover with a loudspeaker, LED flashlight, side buttons, contact antennas pads. The cover protects printed circuit boards (PCB). Try to lift the cover by the edges and not push anything between them to not accidentally touch or short-circuit anything on the circuit boards.


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Step 5. Disconnect the battery connector

Disconnect the battery connector as soon as possible.

ℹī¸ī¸ The Samsung Galaxy A50 SM-A505 model has a battery EB-BA505ABU with 4000 mAh capacity (aka rechargeable battery).

⚠ī¸ī¸ It is highly recommended to disconnect the connector to avoid possible short circuits during disassembly.

Also, try not to use a metal tool to disconnect the rechargeable battery connector or do it carefully.


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Step 6. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew two screws securing the fingerprint sensor.


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Step 7. Remove the fingerprint sensor

Disconnect the coaxial cable connector, inter-board sub-screen cable, fingerprint sensor cable on the daughterboard.

Besides, remove the fingerprint sensor, and detach the small board with antenna units.

⚠ī¸ī¸ Do not pull on the cable or pry it with a sharp tool. The connectors are pretty weak and break easily, or the cable falls out of the end (lug).


How to disassemble Samsung Galaxy A50 SM-A505, Step 8/1 How to disassemble Samsung Galaxy A50 SM-A505, Step 8/2

Step 8. Remove the daughterboard

Remove the sub-board. It is glued to the frame with metalized tape, so to facilitate the process, the sub-board can be heated a bit.

ℹī¸ī¸ The sub-board contains a charging port (Micro-USB), microphone, headphone jack socket, spring contacts for the loudspeaker, and an antenna unit.

⚠ī¸ī¸ It is not necessary to insert the tool underneath when removing the sub-board. Internal components could be damaged.


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Step 9. Remove the inter-board cable

Carefully, preferably from the edge, disconnect the connector and remove the inter-board cable connecting the mainboard to the daughterboard (also known as the sub-board).

⚠ī¸ī¸ Be careful when removing the cables from the connectors. The cables are pretty thin, and it is easy enough to break them or damage the contact tracks inside.

ℹī¸ī¸ An arrow on the FFC cable (flexible flat cable) indicates its correct position.


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Step 10. Disconnect the connectors

Disconnect two coaxial cable connectors.


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Step 11. Remove the inter-board cable

Carefully, preferably from the edge, disconnect the connectors and remove the flat cable connecting the mainboard to the display module.

⚠ī¸ī¸ Be careful when removing the cables from the connectors. The cables are pretty thin, and it is easy enough to break them or damage the contact tracks inside.

ℹī¸ī¸ An arrow on the FFC cable (flexible flat cable) indicates its correct position.


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Step 12. Unscrew one screw

Using a screwdriver (Philips 1.5 mm PH000), unscrew one screw securing the motherboard.


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Step 13. Remove the front camera

Pry up the connector on the motherboard, and remove the front (selfie) camera.


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Step 14. Remove the motherboard

Carefully remove the printed circuit board. There is no need to use a lever or try to reach the circuit board by force. Make sure that nothing is getting in the way or holding the circuit board.

⚠ī¸ī¸ Do not bend the circuit board when removing it or push tools under it. Unbeknownst to yourself, you can damage components or cables from the inside.


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Step 15. Remove the cameras

Pry up the connectors and remove the three rear cameras assembly.

Detailed disassembly instructions of Samsung Galaxy A50 SM-A505 in the video, made by our mobile repair & service center:

If you have a question, ask us, and we will try to answer in as much detail as possible. If this article was helpful for you, please rate it.


Disassembling\Repair has medium complexity and takes about 12 minutes in time. Our manual is suitable for all models Samsung Galaxy A50 SM-A505 — Samsung SM-A505F/DS, SM-A505FN/DS (Global); SM-A505GN/DS, SM-A505FM/DS, SM-A505YN released for markets in different countries.


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