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Repair and disassembly information for the second-generation iPhone SE that was announced and released in April of 2020.

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Battery replacment, do you need tag on flex?

Hi, i have question, what about iPhone SE 2020. do you need tag on flex, or you can just replace BMS board. When you replacing battery.

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You will need the tag on all iPhones from A13 up. So yes you will need it.

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Sorry, this is not true. No tag-on flex is needed for XS/XR/SE2020. Only for 11 and up in my experience


Do you need to keep the tag-on flex connected after the health is corrected?


@e_ahh Yes, the tag-on is designed to be installed inside the phone and left on permanently, or at least until the next time you need to replace the battery.


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