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Disassembly of the mobile device LeEco Cool 1 (LeEco Cool 1 C103, C106-7, R116) with each step description and the required set of tools.

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How to disassemble LeEco Cool 1, Step 1/1

Step 1. Before disassembling!

⚠️ Before disassembling, don't forget to turn your phone off.


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Step 2. 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 3. Open the display module

⚠️ Pay attention! Disassembly has a maximum 3rd difficulty because the process begins with the disassembly of the display module. If you have no experience or are not sure of your skills, we strongly recommend that you contact a specialized service center.

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 display module must be heated to soften the adhesive underneath. The approximate heating temperature is 50 ° C.

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. The process can be seen in our video entirely so as well as in detail, at the end of the instructions.

⚠️ It is important not to get a film between the touchscreen/glass and the display module, which will damage the module.

⚠️ Look in advance at the picture of the places where the touchscreen and display cables pass under the display module to avoid accidental damage.

 


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Step 4. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew the 2 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.


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Step 5. Disconnect the connectors

Pry up the connectors and remove the display module.


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Step 6. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew the 6 short screws. 


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Step 7. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew the 10 small screws. 


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Step 8. Open the cover

Remove the cover with antennas and an earpiece speaker that protects the printed circuit boards (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 PCB.

ℹ️️ On the cover, you can see the metalized coating on the plastic in the form of tracks and contact pads. These are Wi-Fi, Bluetooth, and GPS antennas.

⚠️ 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 9. Disconnect the battery connector

Disconnect the battery connector as soon as possible.

ℹ️️ The LeEco Cool 1 model has a battery COLD-403 with 4060 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 10. Remove the battery

Remove the rechargeable battery.


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Step 11. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 2 screws securing the daughterboard.


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Step 12. Remove the daughterboard

Turn over the daughterboard. Disconnect the coaxial and inter-board cable connectors and remove the daughterboard (aka sub-board).

⚠️ 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 13. Remove the loudspeaker

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 14. Remove the cameras

Pry up the connectors and remove the two rear cameras.


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Step 15. Disconnect the connectors

Disconnect the coaxial cable connector and fingerprint sensor cable on the mainboard.

⚠️ 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 16. Turn over the motherboard

Turn the mainboard over.

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. Disconnect the connectors

Pry up the connectors of the power volume buttons cable and inter-board cable. Remove the PCB.

⚠️ 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 18. Remove the front camera

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


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Step 19. In the housing remained

ℹ️️ In the housing remained: power/volume buttons, inter-board, and coaxial cables.

Detailed disassembly instructions of LeEco Cool 1 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.

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Disassembling\Repair has hard complexity and takes about 27 minutes in time. Our manual is suitable for all models LeEco Cool 1 — LeEco Cool 1 C103, C106-7, R116 released for markets in different countries.



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