Replacing the earpiece speaker in your iPhone 3G or iPhone 3GS is one of the easier DIY repairs. If you aren't ready to shell out the cash for a new iPhone just yet, you should be able to easily and successfully replace the speaker on your existing iPhone all on your own.
Disclaimer: As with any repair, iMore nor PXLFIX can be held responsible for any damage you may do to your device. It’s also worth considering that opening up your device to perform any repair or modification can and will void your Apple warranty. If you don’t feel comfortable opening your device, don’t. Use extreme care and caution when performing a repair on any device.
It's always worth first trying an iOS restore to rule out a possible software issue before performing a hardware repair. If that still doesn't work and you can't hear any sound when on the phone, you most likely have a bad earpiece speaker that'll need to be replaced.
PXLFIX recommends using only quality and genuine parts from a reputable supplier like eTech Parts. They have quality parts, tools, and much more for all your repair needs.
This repair will be performed in exactly the same manner regardless whether you have an iPhone 3G or iPhone 3GS.
Before performing any repair or removing any screws or parts, always power off your device.
Using your #00 Phillips screwdriver, remove the 2 screws located on each side of the dock connector.
This part can be a bit tricky so please do this with extreme care so you don't tear any cables during the process.
The easiest way to remove the digitizer assembly is by using a suction cup.
Remove the cables that attach the digitizer assembly to the logic board:
Once you have the bottom of your digitizer assembly popped up we can remove the cables attaching it to the logic board.
At this point you can set the body of your iPhone aside and flip over the front screen assembly, which contains your earpiece.
This step is optional and not required but I recommend it. Removing the LCD will allow you to get a better view of the induction flex you'll need to remove. It'll also give you more room to maneuver your pry tool around. If you don't remove the LCD, make sure you don't apply any pressure to it when removing the induction flex and speaker assembly.
We will need to remove the induction flex cable in order to get to the earpiece speaker. There's only 1 screw holding it in.
Once the induction flex cable and cover are removed, you'll have a clear view of the actual earpiece speaker. This is what you'll be removing and replacing. You'll just need to pry it loose from the digitizer assembly.
Once you've replaced the earpiece speaker, you'll just need to reassemble your iPhone by following these directions in exact reverse order. As a side tip, take care to snap in the induction flex cable carefully. There's a clip towards the bottom you'll need to make sure snaps in all the way or you'll have issues putting the assembly back together.
That's it! You should now have a fully functional earpiece speaker again. And you probably saved quite a bit compared to what it would cost to buy a new iPhone. If you run into problems, make sure to check out our DIY and mod forums below. If you don't feel comfortable opening your device on your own, you can always contact PXLFIX about mail-in repairs as well.