Teardown difficulty:
Moderate

Recommended tools

Disassembly of the mobile device OnePlus 7T with each step description and the required set of tools.


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How to disassemble OnePlus 7T, Step 1/1

Step 1. Before disassembling!

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


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Step 2. 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.

⚠️ 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 3. 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.

ℹ️️ 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.


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Step 4. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 11 screws.


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Step 5. Open the cover

Carefully detach the cover hiding the motherboard.


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Step 6. Disconnect the battery connector

Disconnect the battery connector as soon as possible.

ℹ️️ The OnePlus 7T model has a battery BLP743 with 3800 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 (Philips 1.5 mm PH000), unscrew 7 screws.


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Step 8. Remove the loudspeaker

Remove the loudspeaker assembly with antennas.


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Step 9. Remove the inter-board cable

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

⚠️ 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.

ℹ️️ An arrow on the FFC cable (flexible flat cable) indicates its correct position.


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Step 10. Disconnect the connectors

Disconnect connectors of the inter-board sub-screen cable, fingerprint sensor cable 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 11. 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.

ℹ️️ The sub-board contains a microphone, spring contacts for the speaker, and an antenna unit.

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


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Step 12. Remove the charging port

Pry up the connector and remove the cable with the charging port.


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Step 13. Remove the front camera

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


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Step 14. Unscrew the screws

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


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Step 15. Disconnect the connectors

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

The coaxial cable is attached to the motherboard, so be careful.

⚠️ 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 16. 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 17. Remove the bracket

Carefully remove the bracket securing the cameras connectors.


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Step 18. Remove the cameras

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

Detailed disassembly instructions of OnePlus 7T 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 minutes in time. Our manual is suitable for all models OnePlus 7T released for markets in different countries.



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