Teardown difficulty:
Easy
Duration:
10 min

Recommended tools

Disassembly/Repair of the mobile device Nokia 5.4 TA-1337 with each step description and the required set of tools.


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Step 1. Before disassembling!

⚠️ Before disassembling, do not forget to turn your phone off.


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Step 2. Open the back cover

Using a spudger or a plastic pick, carefully, around the edge, detach the back cover clips, and remove it.

Do not insert the tool deeply or bend it. Otherwise, the housing may be tampered with or damaged.

⚠️ Be careful when opening the cover from the volume and power buttons side. Thin cable and fragile buttons are straightforward to damage.

⚠️ Pay attention to the fingerprint sensor cable is located from the inside.


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Step 3. Remove the fingerprint sensor

Okay, this step is for ones who opened a back cover, and the fingerprint sensor is still on the upper-middle cover and connected with a motherboard.

So, we need to disconnect the connector and remove the fingerprint sensor.


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Step 4. Unscrew the screws

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


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Step 5. Open the cover

Remove the cover with antennas that protect the printed circuit board (PCB). Try to lift the covers by the edges and not push anything between them to not accidentally touch or short-circuit anything on the PCB.


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Step 6. Disconnect the battery connector

Disconnect the battery connector as soon as possible.

ℹ️️ The Nokia 5.4 TA-1337 model has a battery HQ430 with 4000 mAh capacity (aka rechargeable battery).

⚠️ 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 7. Unscrew the screws

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


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Step 8. Remove the loudspeaker

Remove the loudspeaker assembly with antennas.


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Step 9. Disconnect the connectors

Disconnect the coaxial cable connector, cables to the mainboard, on the daughterboard.

⚠️ 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).


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Step 10. Remove the daughterboard

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

ℹ️️ The board contains a charging port (Micro USB), microphone, spring contacts for the speaker, vibration motor, and an antenna unit.


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Step 11. Remove the cameras

Pry up the connectors and remove four rear cameras.


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Step 12. Disconnect the connectors

Pry up the connectors of the display module cable, inter-board cable, and coaxial cable.

⚠️ 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.


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Step 13. Remove the motherboard

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

⚠️ 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 14. Remove the front camera

Pry up the connectors and remove the front (selfie) camera.

Detailed disassembly instructions of Nokia 5.4 TA-1337 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 easy complexity and takes about 10 minutes in time. Our manual is suitable for all models Nokia 5.4 TA-1337 released for markets in different countries.



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