The first model of iPhone, Model A1203 with 4, 8, or 16 GB capacity and an aluminum back. Repair requires a significant amount of prying, and may require some soldering.

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Logic board swapping 4, 8, 16 GB

Is it possible to replace iPhone's original logic board with a new logic board with different capacity? Say from original 4 GB to 8 GB or 16 GB?

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Yes, as you see here there are different logic boards for different capacities, and it says they each work in all 1st gen iPhones

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Just an addition: make sure the 8 or 16 GB boards are for 1st gen iPhones (which is represented by your link). 2nd or 3rd gen iPhone boards aren't compatible with 1st gen.


Yes, that's important, you can only buy within your gen.


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when i used facebook or internet in my iphone A1203 8g a second ago it will turn back in menu. i cant used facebook because it will be back in menu after a second.what should i do?thanks

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