How to Disassemble Vita Game Cartridges

A hacker named katsu recently released a method for dumping Vita games. As a developer, I am completely against piracy, but as a reverse engineer I can’t shy away from taking apart perfectly working devices. However, most pictures I see of Vita game carts taken apart show the game cart casing damaged beyond repair or completely destroyed. I managed to take apart a game cart and put it together with no obvious signs of damage, and I thought I would share my (simple) method here.

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Dumping the Vita NAND

When we last left off, I had spent an excess of 100 hours (I’m not exaggerating since that entire time I was working, I listened to This American Life and went through over a hundred one-hour episodes) soldering and tinkering with the Vita logic board to try to dump the eMMC. I said I was going to buy a eMMC socket from taobao (the socket would have let me clamp a eMMC chip down while pins stick out, allowing the pressure to create a connection) however, I found out that all the sellers of the eMMC socket from taobao don’t ship to the USA and American retailers sell the sockets for $300 (cheapest I could find). So I took another approach.

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PS Vita NAND Pinout (Updated)

Since the last post on the eMMC pinout, I found the other two important test points. First is VCCQ, which is the power to the eMMC controller. It needs to be pulled at 1.8V. The other point is VCC, which is the power to the actual NAND flash. It needs to be pulled at 3.3V.

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Random observations on Vita logic board

While I’m waiting for more tools to arrive, here’s some things I’ve found while playing around with the continuity test on a multimeter. There is no stunning discovery here, just bits and pieces of thoughts that may not be completely accurate.

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