Did a T500 quad-core mod today, for a customer. The customer had purchased a quad-modded T500 from a random eBay person, but it wasn't booting properly, so it got sent to me for repair.

I didn't take photos, but when I took the board out, I could see that the solder was really bad (cold joints). I re-did the whole mod, and it boots up again.

I really enjoy doing these mods. I also upgraded this machine's internal SPI flash to 16MB Winbond W25Q128FVSIG, rather than the built-in 8MB Macronix IC.