Here's a fun problem I ran in to the other day: Client's SSD is throwing IO errors. Can you guess why?

I haven't heard of manufacturers using Philips screw heads. Anything off about the back?

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A QR code for the serial number, not a Data Matrix code? The sticker is also a little off-center. Could this be counterfeit? Let's look inside- Uh oh...

Here's the full counterfeit board in its glory. A single Toshiba NAND chip and a SATA controller on a green PCB. Definitely not a large blue PCB with multiple Kingston NAND chips.

I imagine the failure is due to low quality parts, or even bad emulation- It would freeze during SMART tests. Searching up the controller chip SM2246XT online shows some similar board layouts. Today's hard lesson is: Don't buy electronics off shady eBay sellers.

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