Forget JTAG. Today's RGH is about two paths: the classic RGH 1.2/2.0 (with a glitch chip) or the near-chipless RGH 3.0.

– Download J-Runner with Extras . It handles NAND reading, ECC creation, and XeBuild image building.

Install DashLaunch and Aurora via XexMenu – then you're done.