⚠️ Before disassembling, do not forget to turn your phone off.
Disassembly/Repair of the mobile device Nokia C20 TA-1352 with each step description and the required set of tools.
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 cables and fragile buttons are straightforward to damage.
Step 5. Open the cover
Remove the cover with antennas and 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 PCB.
Step 8. Disconnect the connectors
Disconnect the coaxial cable connector, cable to the mainboard, and pry up the vibration motor which is glued to the display module frame and wired to the 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).
Step 9. 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, vibration motor, 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.
Step 10. 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.
Step 11. Remove the motherboard
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.
Detailed disassembly instructions of Nokia C20 TA-1352 in the video, made by our mobile repair & service center:
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