It's easy enough, provided you have an original NAND Dump. You won't need to resolder, provided you configure the SMC for your wiring (ARGON_DATA, AUD_CLAMP, HDMI or TRAY_OPEN). By default the tool uses AUD_CLAMP for TMS, and DB1F1 (or it's alternative points) for TDI. If you're using ARGON_DATA...