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I bought an iPhone battery replacement kit and started prying the iPhone apart at the wrong place. I'm wondering if I could have damaged the speakers at the bottom of the phone. I pried beneath the chrome instead of between the glass and above the chrome. Later I did it correctly and replaced the battery. When the iPhone was put back together (I actually had a sciency friend do most of it for me) the speakers on the bottom of the phone were no longer working. These are the speakers that work when the phone rings or when you watch youtube videos. The speaker at the top of the phone when you are talking to someone works fine.
The headphones do work, but not the speakers. This website said that this is a fairly common problem, but the fix doesn't make sense in the context of what I've done to my phone. Any idea of the likelihood that I damaged the speakers or how I might fix them?
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I had this happen to me to other devices with headphones or minijacks -sometimes entirely out of the blue, due to shitty materials. A few break after just a dozen insertions, and I had at least one that broke after its first insertion -after I removed my headphones from the jack of pair of shitty computer speakers, the speakers went dead, even though headphones still worked. I had to open it up and, since a STEREO solderable miniplug is hard to come buy, I just soldered the internal speakers to be permanently "on".
Are the pins too tiny? Are they right below the jack?
If it's surface soldered, there will be no solder side with accessible pins on the board itself: take a look at how the ICs are soldered on any reasonably modern piece of electronics, and you'll see what I'm talking about. These components can only be unsoldered with a hot-air solderer/desolderer or a special oven.
However it would be unusual for a jack to be soldered in this way to the circuit board, as they have few contact points and need to resist somewhat more of a mechanical stress.
Now, if this guide is to be believed, it actually is neither see-through nor surface soldered, but is "free floating" and attaches through delicate ribbon cables (the headphone jack only appears at the 7th of the 8 steps). No idea how easy that is to replace.
Perhaps, if you're lucky, you may just get by using this q-tip fix.