XDA member KApetz2 decided he loved every bit of his Nexus 5 so much, but hated that he didn't have more than 32GB of internal storage. So he did what every modder does, he took matters into his own hands and bought a 64GB eMMC chip and changed the damn memory himself. KApetz2 bought a 64GB chip online and figured he could swap out the memory chip in the logic board and gain double the internal storage space. This, however, is not the case. While it is not physically impossible to swap such a chip, it is, however, not as simple as it sounds. The firmware in the device needs to know...
Source: http://www.gsmarena.com/this_modder_got_64gb_of_internal_storage_on_his_nexus_5_by_replacing_the_emmc_chip-news-17916.php
