What are you doing wrong? Probably nothing. Apple has continued it's repair-antagonistic direction with now pairing batteries to logic boards. It's my understanding that the non-genuine battery warning started with the XS and the only way to get rid of it is to swap the BMS to a new battery cell. It appears that may apply to the SE 2020 even though it's closer to the iPhone 8 in its lineage rather than the XS, but I don't have any definitive answer so far. Aftermarket vendors are offering SE 2020 cells without the BMS, which implies that swapping is necessary, or at a minimum it's being done often enough to justify offering the bare cells as an option.
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To make matters worse, as of the iPhone 11, the battery health information is encrypted and cannot be reprogrammed on the original battery boards. Manufacturers have come up with a workaround for now that involves adding a small circuit board that connects between the battery and the motherboard and allows you to write the battery data. That board has to be left in the phone permanently but could be reused should the battery need to be replaced once again in the future.
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To make matters worse, as of the iPhone 11, the battery health information is encrypted and cannot be reprogrammed on the original battery boards. Manufacturers have come up with a workaround for now that involves adding a small circuit board called a tag-on board that connects between the battery and the motherboard and allows you to write the battery data. That board has to be left in the phone permanently but could be reused should the battery need to be replaced once again in the future.
Sure wish they'd quit making life miserable for those of us who are perfectly capable of opening up a phone and replacing a battery!
Hi B C,
What are you doing wrong? Probably nothing. Apple has continued it's repair-antagonistic direction with now pairing batteries to logic boards. It's my understanding that the non-genuine battery warning started with the XS and the only way to get rid of it is to swap the BMS to a new battery cell. It appears that may apply to the SE 2020 even though it's closer to the iPhone 8 in its lineage rather than the XS, but I don't have any definitive answer so far. Aftermarket vendors are offering SE 2020 cells without the BMS, which implies that swapping is necessary, or at a minimum it's being done often enough to justify offering the bare cells as an option.
To make matters worse, as of the iPhone 11, the battery health information is encrypted and cannot be reprogrammed on the original battery boards. Manufacturers have come up with a workaround for now that involves adding a small circuit board that connects between the battery and the motherboard and allows you to write the battery data. That board has to be left in the phone permanently but could be reused should the battery need to be replaced once again in the future.
Sure wish they'd quit making life miserable for those of us who are perfectly capable of opening up a phone and replacing a battery!