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Announced on October 13th, 2020, the iPhone 12 mini is a smaller version of Apple's iPhone 12. It features a 5.4-inch OLED display, an A14 Bionic processor, and dual rear cameras.

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phone wont start after replacing ear piece

I use the repair guide to replace the ear piece, as it no longer produce sound.

After its done, it does not start up. I notice when i plug in the phone, the back is hot.

I got a used iphone 12 mini motherboard off of ebay, but when i put it in it also does not start, the back is also hot. I have giving up on this phone, but just want to know what could have cause it to not start up. Thanks.

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so since it started doing this by replacing the front speaker flex, try turning it on without the speaker connected

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