Aporte original por: Tom Chai ,
It is almost impossible to transplant the chips, especially for iPhone 6. For some reason the board is almost completely impossible to rework. If you do wish to try anyway, I recommend transplanting the CPU, NAND memory, baseband, baseband EEPROM, NFC controller and a chip called "anti-rollback EEPROM" on the schematics. Also get the original home button connected to the board, somehow all these chips are cryptographically paired together and the phone is likely to refuse to boot if one of these chips are not paired with others.