What is the replacement process of iPhone 4s audio cable?

Apple's 4s audio cable mute key line replacement steps:

1. Before disassembling the machine, please confirm that the mobile phone is turned off, and unscrew the two pentagonal screws at the bottom with a pentagonal screwdriver. Push the back cover upwards, and the back cover will move upwards by about 2mm. Remove the back cover and unscrew the two screws that secure the battery to the motherboard. Cross screws of 1.7mm and 1.5mm respectively.

2. Use tweezers to remove the pressure contact next to the battery holder. Gently remove the battery cable from the battery holder on the motherboard with a crowbar. Insert the crowbar from the lower left corner (between the battery and the intermediate plate), slide it to the right and tilt it upward at the same time, so that the adhesive can be completely separated. Use the exposed transparent drawstring to keep the battery away from the back glue fixed on the mobile phone. Unscrew the screws (1.5mm and 1.2mm cross screws) for fixing the tail patch cord iron plate, and remove the tail patch cord iron plate with a pry bar to separate the tail patch cord from the tail patch cord seat on the motherboard.

3. Remove the glue that fixes the tail plug wire and the ring edge on the motherboard, and use a crowbar to make the wifi cable leave its seat on the motherboard. If necessary, use tweezers to remove the plastic ring at the flash of the rear camera, and remove the four screws (2.7 mm, 2.6 mm, 1.3 mm, 1.2 mm respectively) for fixing the protective cover. Remove the guard with a crowbar. Remove the rear imaging head.

4. Take out the sim card and the Cato with the pin. Remove the following five cables: audio cable/volume key cable, front camera cable, touch cable and LCD cable. Open the key cable, remove the screw of the iron plate next to the audio cable, and remove the small iron plate.

5. Remove the 4.8 mm bracket next to the audio cable with a flat screwdriver. Disconnect the wifi cable from the motherboard with a crowbar. If the screw next to the switch is covered with iron plate, please remove it. Remove the1.6mm Phillips screw.

6. Remove the motherboard. Gradually upward from the end near the bell. Attention! So as not to lose the small iron piece near the key rear camera. Remove the front camera holder with a crowbar, remove the front camera, remove the 2.4mm cross screw next to the audio line, peel off the antenna above the audio line with a crowbar, and then remove the antenna above with tweezers. First, remove the audio cable from the groove of the midplane with a crowbar, then remove the microphone at the top from the midplane, and remove the main part of the audio cable from the edge of the midplane. Remove the 1.6mm screw that fixes the antenna above the frequency line, and remove the four 1.5mm cross screws that fix the volume key holder and the mute key holder on the middle board. Remove the mute seat with tweezers.

7。 Carefully separate the audio cable assembly from the adhesive that secures it to the midplane, and then remove the audio cable assembly from the midplane. If you want to replace the audio cable, use a crowbar to remove the volume key and the silent key holder, and then install the volume key and the silent key holder on the new audio cable.

8. Keep the audio cable and install it in the reverse order.