It identified the core immediately. A few ejtag-flash -erase commands later, the board was back. That’s the power of open hardware debugging.
Ejtag Tiny Tools solves this by supporting: Ejtag Tiny Tools Software
Modern versions of the software, when used with USB high-speed adapters, leverage the SoC’s DMA engine to move large blocks of data (e.g., the entire NAND flash) without stalling the CPU core. This dramatically speeds up backups. It identified the core immediately