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Disassembly of the mobile device Huawei P Smart (2019) (Huawei P Smart (2019) POT-LX1) with each step description and the required set of tools.


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Step 1. Open the tray

Using the Key tool (aka Needle) or Paperclip, open the SIM and Memory cards (Micro SD) tray, and take it out.

⚠️ Pay attention! The tool must be inserted into a special hole on the edge of the phone's housing. Do not press too hard; it may break the tray ejection mechanism.

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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.

⚠️ Look in advance in the picture for the cables' location for inter-board, touchscreen, display, buttons (if any) under the cover, so as not to damage them accidentally.

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

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Step 3. Disconnect the fingerprint sensor

Pry up the fingerprint sensor connector and remove the cover.

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Step 4. Unscrew the screws

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

⚠️ Try to control and perform all actions carefully to not accidentally touch or short circuit anything on the printed circuit board. 

ℹ️️ Be sure to note the location of the screws before disassembling. When assembling the device, screwing the screw in the wrong place may damage the device or its part. To avoid damage, the removed screws and individual pieces (as gaskets or brackets) must be laid out in the appropriate order, or the screws and their holes in the phone must be marked with colored markers.

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Step 5. Disconnect the battery connector

Disconnect the battery connector as soon as possible.

ℹ️️ The Huawei P Smart (2019) POT-LX1 model has a battery HB396286ECW with 3320 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 6. Remove the cable

Pry up the connector and remove the fingerprint sensor cable.

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Step 7. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 5 large screws. 

ℹ️️ Be sure to note the location of the screws before disassembling. When assembling the device, screwing the screw in the wrong place may damage the device or its part. To avoid damage, the removed screws and individual pieces (as gaskets or brackets) must be laid out in the appropriate order, or the screws and their holes in the phone must be marked with colored markers.

 

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Step 8. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 3 small screws. 

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Step 9. Remove the loudspeaker

Remove the cover protecting the daughterboard (aka sub-board). Try to lift the cover by the edges and do not push anything between the cover and PCB to not accidentally touch or short-circuit anything on the board. Remove the loudspeaker assembly with antennas.

ℹ️️ This loudspeaker is installed on many models of this manufacturer, and it is quite simple to change. To replace the loudspeaker, you need to heat its surface to soften the glue base gently, but a new one - be sure to glue it! Otherwise, when playing sounds and music, the speaker will rattle and make extraneous sounds.

⚠️ It is important while reassembling, checking the spring contacts on the board, and the contact pads on the cover match and touch. Otherwise, signal loss or signal may be quite weak.

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Step 10. 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 11. Disconnect the connector

Disconnect the coaxial cable connector 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 12. 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, vibration motor, spring contacts for the speaker, and an antenna unit.

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

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Step 13. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 4 screws.

ℹ️️ Be sure to note the location of the screws before disassembling. When assembling the device, screwing the screw in the wrong place may damage the device or its part. To avoid damage, the removed screws and individual pieces (as gaskets or brackets) must be laid out in the appropriate order, or the screws and their holes in the phone must be marked with colored markers.

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Step 14. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 3 small screws. 

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Step 15. Remove the cover

Remove the cover securing the cameras.

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Step 16. Remove the front camera

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

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Step 17. Remove the cameras

Pry up the connectors and remove two rear cameras assembly. 

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Step 18. Remove the coaxial cable

Disconnect the connectors and remove the coaxial cable.

⚠️ 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 19. Disconnect the connector

Pry up the inter-board connector.

⚠️ 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 20. Remove the mainboard

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 21. In the display frame remained

ℹ️️ In the housing remained: the earpiece speaker, vibration motor, battery, and proximity sensor cable.

Detailed disassembly instructions of Huawei P Smart (2019) in the video, made by our mobile repair & service center:


Disassembling\Repair has easy complexity and takes about 15 minutes in time. Our manual is suitable for all models Huawei P Smart (2019) — Huawei P Smart (2019) POT-LX1 released for markets in different countries.


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