Teardown difficulty:
Easy
Duration:
9 min

Recommended tools

Disassembly/Repair of the mobile device Xiaomi Redmi 8A (Xiaomi Redmi 8A M1908C3KG) with each step description and the required set of tools.


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How to disassemble Xiaomi Redmi 8A, Step 1/1 How to disassemble Xiaomi Redmi 8A, 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.

⚠️️ 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.


How to disassemble Xiaomi Redmi 8A, Step 2/1 How to disassemble Xiaomi Redmi 8A, Step 2/2

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.

 


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Step 3. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH #000), unscrew the nine screws.


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Step 4. Open the cover

Pry over the edges. Move an opening tool along the edge detach the clips and remove the cover hiding the motherboard.


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Step 5. Disconnect the battery connector

Disconnect the battery connector as soon as possible. It is better to use a non-metal or plastic tool to avoid any damage.

ℹ️️ The Xiaomi Redmi 8A model has a battery BN51 with 5000 mAh capacity (aka rechargeable battery).

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


How to disassemble Xiaomi Redmi 8A, Step 6/1 How to disassemble Xiaomi Redmi 8A, Step 6/2

Step 6. Unscrew the screws

Using a screwdriver (Philips 1.5 mm PH #000), unscrew the seven screws.


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

Step 7. Remove the loudspeaker

Pry over the edge and remove the loudspeaker assembly.


How to disassemble Xiaomi Redmi 8A, Step 8/1 How to disassemble Xiaomi Redmi 8A, Step 8/2

Step 8. Unscrew one screw

Using a screwdriver (Phillips 1.5 mm PH #000), unscrew one screw securing the sub-board.


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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.


How to disassemble Xiaomi Redmi 8A, Step 10/1

Step 10. Disconnect the connector

Disconnect the coaxial cable connector.


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Step 11. Remove the daughterboard

Remove the sub-board. It may be glued to the frame or attached with attachments like latches or hooks, so be careful.

ℹ️️ The sub-board contains a charging port (Micro-USB), microphone, headphone jack socket, spring contacts for the speaker, vibration motor, 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 cameras

Disconnect connectors on the motherboard and remove the main and front (selfie) cameras.


How to disassemble Xiaomi Redmi 8A, Step 13/1 How to disassemble Xiaomi Redmi 8A, Step 13/2

Step 13. 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 8A, Step 14/1 How to disassemble Xiaomi Redmi 8A, Step 14/2

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.

The motherboard, also, may be attached with attachments like latches or hooks, be careful.

⚠️️ 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. In the display frame remained

ℹ️️ In the display frame remained: the earpiece speaker.

Detailed disassembly instructions of Xiaomi Redmi 8A 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 9 minutes in time. Our manual is suitable for all models Xiaomi Redmi 8A — Xiaomi Redmi 8A M1908C3KG released for markets in different countries.



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