Teardown difficulty:
Moderate
Duration:
12 min

Recommended tools

Disassembly of the mobile device Xiaomi Redmi Note 7 (Xiaomi Redmi Note 7 M1901f7G) with each step description and the required set of tools.


Specialist in content creation, distribution and content management.


How to disassemble Xiaomi Redmi Note 7, Step 1/1 How to disassemble Xiaomi Redmi Note 7, Step 1/2

Step 1. 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.

⚠️️ Pay attention to the fingerprint sensor cable connected to the back cover from the inside.

After, we opened the back cover. Gently flip the cover over to disconnect connector fingerprint sensor.


How to disassemble Xiaomi Redmi Note 7, Step 2/1 How to disassemble Xiaomi Redmi Note 7, Step 2/2 How to disassemble Xiaomi Redmi Note 7, Step 2/3

Step 2. Disconnect the connector

Carefully peel off the protective film. Disconnect the fingerprint sensor connector and remove the back cover.

⚠️️Try to use non-metal or plastic tools to avoid short-circuits because the smartphone is still battery-powered.


How to disassemble Xiaomi Redmi Note 7, Step 3/1 How to disassemble Xiaomi Redmi Note 7, Step 3/2

Step 3. Disconnect the connectors

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 3 screws and remove the bracket holding the connectors.


How to disassemble Xiaomi Redmi Note 7, Step 4/1 How to disassemble Xiaomi Redmi Note 7, Step 4/2 How to disassemble Xiaomi Redmi Note 7, Step 4/3

Step 4. Disconnect the battery connector

Disconnect the battery connector as soon as possible.

ℹ️️ The Xiaomi Redmi Note 7 M1901F7G model has a battery BN4A 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.


How to disassemble Xiaomi Redmi Note 7, Step 5/1 How to disassemble Xiaomi Redmi Note 7, Step 5/2

Step 5. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 8 screws.


How to disassemble Xiaomi Redmi Note 7, Step 6/1 How to disassemble Xiaomi Redmi Note 7, Step 6/2

Step 6. Remove the loudspeaker

Remove the loudspeaker assembly with antennas.


How to disassemble Xiaomi Redmi Note 7, Step 7/1 How to disassemble Xiaomi Redmi Note 7, Step 7/2

Step 7. Unscrew one screw

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


How to disassemble Xiaomi Redmi Note 7, Step 8/1 How to disassemble Xiaomi Redmi Note 7, Step 8/2 How to disassemble Xiaomi Redmi Note 7, Step 8/3

Step 8. 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.


How to disassemble Xiaomi Redmi Note 7, Step 9/1 How to disassemble Xiaomi Redmi Note 7, Step 9/2

Step 9. Disconnect the connector

Disconnect the coaxial cable connector.


How to disassemble Xiaomi Redmi Note 7, Step 10/1 How to disassemble Xiaomi Redmi Note 7, Step 10/2

Step 10. 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 charging port (Micro-USB), 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.


How to disassemble Xiaomi Redmi Note 7, Step 11/1 How to disassemble Xiaomi Redmi Note 7, Step 11/2

Step 11. Unscrew one screw

Using a screwdriver (Philips 1.5 mm PH000), unscrew one screw and remove the bracket holding the connector.


How to disassemble Xiaomi Redmi Note 7, Step 12/1 How to disassemble Xiaomi Redmi Note 7, Step 12/2

Step 12. Unscrew the screws

Using a screwdriver (Philips 1.5 mm PH000), unscrew 7 screws.


How to disassemble Xiaomi Redmi Note 7, Step 13/1 How to disassemble Xiaomi Redmi Note 7, Step 13/2

Step 13. Open the cover

Pry around the edges. Move an opening tool along the edge detaching the clips and removing the cover. The middle cover securing the fingerprint sensor cable connector, earpiece speaker, front camera.


How to disassemble Xiaomi Redmi Note 7, Step 14/1 How to disassemble Xiaomi Redmi Note 7, Step 14/2 How to disassemble Xiaomi Redmi Note 7, Step 14/3

Step 14. Disconnect the connector

Pry up the connector and remove the fingerprint sensor cable.


How to disassemble Xiaomi Redmi Note 7, Step 15/1 How to disassemble Xiaomi Redmi Note 7, Step 15/2

Step 15. Remove the front camera

Peel off the passive heatsink copper film. Pry up the connector, and remove the front (selfie) camera.


How to disassemble Xiaomi Redmi Note 7, Step 16/1

Step 16. Disconnect the connectors

Pry up the connectors of the display module cable, 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.


How to disassemble Xiaomi Redmi Note 7, Step 17/1 How to disassemble Xiaomi Redmi Note 7, Step 17/2

Step 17. 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.

⚠️️ 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.


How to disassemble Xiaomi Redmi Note 7, Step 18/1 How to disassemble Xiaomi Redmi Note 7, Step 18/2

Step 18. Remove the rear camera

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

Detailed disassembly instructions of Xiaomi Redmi Note 7 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 Xiaomi Redmi Note 7 — Xiaomi Redmi Note 7 M1901f7G released for markets in different countries.



Back to the list
˄˅

Advertisement

˃˂

Advertisement