Teardown difficulty:
Moderate

Recommended tools

Disassembly of the mobile device vivo Y20 with each step description and the required set of tools.


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How to disassemble vivo Y20, 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 the 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 14 screws.


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Step 5. Unscrew one screw

Using a screwdriver (Phillips 1.5 mm PH000), unscrew one short screw.

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 parts. 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 6. Unscrew one screw

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


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Step 7. Open the middle cover

First, we disconnect the fingerprint sensor connector. It is better to use a non-metal or plastic tool to avoid any damage.

Pry up the edges. Move an opening tool along the edge, detach the clips, and remove the middle cover with a fingerprint sensor and antenna pads and tracks. The middle cover protects the printed circuit board (PCB).

Try to lift the cover by the edges and don't push anything too far inside, so as not to accidentally break or short-circuit anything on the circuit board.


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Step 8. Open the cover

Remove the cover with an earpiece speaker contact pad. The cover protects the printed circuit board (PCB). Try to lift the cover by the edges and not push anything between them to not accidentally touch or short-circuit anything on the circuit board.


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Step 9. 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 vivo Y20 model has a battery B-O5 with 5000 mAh capacity (aka rechargeable battery).

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


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Step 10. Remove the loudspeaker

Remove the assembly with a loudspeaker and vibration motor.


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Step 11. Disconnect the connectors

Disconnect the coaxial cable connector, cable 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 12. Remove the daughterboard

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

The sub-board, also, may be attached with attachments like latches or hooks. Be careful.

ℹ️️ The sub-board contains a charging port (Micro-USB), microphone, headphone jack, 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 13. Remove the cameras

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

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


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Step 14. Unscrew one screw

Using a screwdriver (Philips 2.5 mm for hollow screws), unscrew one screw.


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Step 15. 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 16. In the display frame remained

ℹ️️ In the display frame remained: the earpiece speaker, battery, and coaxial cable.

Detailed disassembly instructions of vivo Y20 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 vivo Y20 released for markets in different countries.



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