this post was submitted on 26 Mar 2026
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No Stupid Questions
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I worked at an Apple Store for many years as a genius during the iPhone 4 to X era and I can tell you that with all the tools and experience, about 2-4% of battery repairs would have some kind of issue that would need further effort to address caused by the repair. Some were minor, like having to replace a vibration motor or a screen, some were major where we would just replace the device.
Without tools and experience, I would imagine the percentage chance of issues would be higher, maybe 10-15% chance. From there it depends how "big" a problem that would be for you if not everything was working well after your repair.
I think 85-90% chance of success is not too bad but I agree with the other poster that this is not an easy repair