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DIY Guide: How to Replace iPhone 4s Dock Connector

Duration: 45 min.
Steps: 19 Steps

In this guide, we show you how to replace your iPhone 4s’ defective dock connector. You need this repair if your computer doesn’t recognize your iPhone, or you can’t charge your iPhone.You also need to replace the dock connector if people can’t understand you on the phone because your microphone isn’t working. In this guide, we show you how to replace your iPhone 4s’ defective dock connector. You need this repair if your computer doesn’t recognize your iPhone, or you can’t charge your iPhone.You also need to replace the dock connector if people can’t understand you on the phone because your microphone isn’t working.

Step 1

– Grab your trusty pentalobe screwdriver – it’s time to get your phone open!

– Next, let’s tackle those two pentalobe screws at the bottom of the enclosure. They’re hanging out on either side of the dock connector, just waiting for you. Make sure to stash those screws in the same compartment of your organizer tray. You’ll be needing 2 x 3.6 mm pentalobe screws for this adventure!

Step 2

– Use your thumbs or the palm of your hand to push the back cover of your iPhone about 4 mm away from the bottom of the phone where the dock connector is (see figure 1).

– Then you can lift the back cover at the end that’s sticking out past the phone (see figure 2).

Step 3

– If your iPhone’s still on, turn it off now by holding down the standby button for about five seconds and following the prompt on the display.

– Remove the two Phillips screws on the battery connector using a Phillips screwdriver (see figure 1). Put the screws in the same compartment of your organizer tray.1 x 1.5 mm Phillips screw1 x 1.3 mm Phillips screwThe contact point on the logic board could come off. If the contact point breaks off but the soldering points are still intact, you can solder the contact point back on.

– Now carefully lift off the battery connector by inserting the pointed ESD spudger slightly below the silver cover plate (see figure 2). If you don’t have a spudger, you can also try using your fingernail.

– For the rest of the repair, you can also use the metal laboratory spatula instead of the spudger. This may make some steps easier for you. However, we explicitly recommend using the ESD spudger produced specifically for precision electronics.

Step 4

– The antenna cover is under the battery connector. Remove the cover and put it in the same compartment of your organizer tray as the Phillips screws you removed before (see figure 1).

– Now remove the battery. It’s sometimes glued firmly in place. Insert the flat end of the spudger into the space (about 1 cm to the left of the volume down button) between the battery and the outer frame, and slowly lift the battery (see figure 2). If the battery’s really stuck on, use other leverage points to the right and left of the original spot to pry it off. If you still can’t detach the battery, you can use a heat gun to warm it slightly from the outside and soften the glue.

– Now you can also disconnect the antenna connector by carefully pulling it off the plug head using the spudger (see figure 3).

Step 5

– Fold the plastic tab with the warning over and press it firmly onto the lower adhesive strip. This way, it won’t get in the way during your repair.

– Of course, you can also remove the plastic tab.

Step 6

– Remove the two Phillips screws from the dock connection cable and remove the silver cover (see figure 1).1 x 1.1 mm Phillips screw1 x 1.4 mm Phillips screw

– Put the screws and cover in the same compartment of your organizer tray. It’s easy to tell them apart.

– Now you can carefully detach the connector by using the pointed tip of the spudger to lift the connector. Alternatively, you can also use your fingernail again (see figure 2).

– Pull the flat cable that’s lightly glued in place off of the logic board and bend it carefully over the frame (see figure 3).

Step 7

– Loosen the two Phillips screws on the speaker but only remove the one in the turquoise circle (see figure 1). This way, you won’t have to struggle to get the little black triangle back in later. Put the screw in a separate compartment of your organizer tray.1 x 2.5 mm Phillips screw (just loosen)1 x 2.5 mm Phillips screw

– Use the spudger to remove the speaker (see figure 2).

Step 8

– Remove the two Phillips screws on the dock connector cable set. You have to remove the orange sticker from the upper screw first. Put the screws in a separate compartment of your organizer tray.2 x 1.3 mm Phillips screws

Step 9

– Carefully flip over the little black rocker switch on the dock connector cable set using the spudger or laboratory spatula (see figures 1 and 2).

– Then carefully pull off the Home button cable’s connector using tweezers or your fingers (see figure 3).

Step 10

– Push the nipple of the microphone’s rubber seal out of the little black groove (see figure 1).

– Now you can pull out the entire cable set with your fingers (see figure 2). It’s lightly glued in place.

Step 11

– Remove the microphone’s rubber seal from the old cable set using the spatula. It’s lightly glued in place.

– Put the seal on the new dock connector.

Step 12

– Now put in the dock connector (see figure 1). Make sure the screw openings on the dock connector cable set are over the corresponding threads.

– Now push the nipple of the microphone’s rubber seal into the little black groove.

– Reconnect the Home button cable using a pair of tweezers (see figure 2) and flip the little rocker switch over again (see figure 3).

– Fasten the dock connector with the two Phillips screws. You have to put the orange sticker back on the upper screw.2 x 1.3 mm Phillips screws

Step 13

– Put the speaker back in.

– At first, only tighten the two Phillips screws on the speaker a little bit (see figure 1).1 x 2.4 mm Phillips screw1 x 2.4 mm Phillips screw

– The speaker’s clips have to be against the speaker behind the higher level of the middle cover (see figure 2). This is easiest if you only slightly screw in the speaker at first so it can still move around a little.

– Once the clips are fitted properly, you can tighten the screws.

Step 14

– Connect the dock connection cable again and put the silver cover on it.

– Fasten the two Phillips screws for the dock connection cable.1 x 1.1 mm Phillips screw1 x 1.4 mm Phillips screw

Step 15

– Detach the plastic tab with the warning or stick it back in if you took it out.

Step 16

– Now put the battery back in the iPhone.

– First you have to attach the antenna connector again (see figure 1).

– Then install the antenna cover (see figure 2).

– Now click the battery connector back into place and screw it in (see figure 3).1 x 1.5 mm Phillips screw1 x 1.3 mm Phillips screw

Step 17

– Put the back cover back on and carefully push it the last few millimeters toward the dock connector.

Step 18

– Now screw in the two screws at the bottom of the enclosure.2 x 3.6 mm pentalobe screws

– Then all you have to do is push in the SIM card tray.

Step 19

– Synchronize your iPhone with iTunes or connect to a WLAN network and wait until the time is set.

– Remove the SIM tray with the SIM card and reinsert it.

– Activate airplane mode on the device and then deactivate airplane mode.

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