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Ensure the Sony Xperia Z3 Compact is completely powered off before starting any repairs.
Use a heat gun or hair dryer to soften the adhesive around the edges of the back cover. Once the adhesive is soft, use a plastic pry tool to carefully work your way around the edges and lift the back cover off.
Identify the battery connector and use the tweezers to carefully disconnect it from the motherboard.
Use a Phillips #00 screwdriver to remove the screws securing the internal components. Make sure to keep track of all screws and their respective positions.
Use the plastic pry tool to disconnect any flex cables that are connected to the components you are replacing. Be gentle to avoid damaging the connectors.
Once all connectors and screws are removed, carefully lift out the defective part that needs to be replaced.
Place the new replacement part in the same position and carefully reconnect all flex cables. Ensure every cable is firmly seated in its connector.
Replace any screws you removed earlier and make sure they are securely tightened. Reconnect the battery and ensure all components are properly aligned.
Apply new adhesive tape or glue around the edges of the back cover. Use the heat gun or hair dryer to slightly warm the adhesive for a stronger bond. Press the back cover firmly into place.
Power on the device to ensure the new part is functioning correctly and everything is working as expected.
By following these detailed instructions, you can successfully replace components of the Sony Xperia Z3 Compact D5803. Always work carefully and methodically to avoid damaging any parts.
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