This product is a set of specialized adapter boards engineered for the Z3X Easy JTAG Plus Box, designed to facilitate direct ISP (In-System Programming) connections to eMMC memory chips on mobile devices and circuit boards. The set includes three distinct interface boards—the 1-Bit ISP REV 2.1, the 4-Bit ISP REV 2.1, and the JTAG REV 2.1. These adapters act as an interface between the repair box and the device’s motherboard, allowing technicians to perform tasks such as firmware flashing, data recovery, and unlocking when standard software methods are insufficient.

The adapter set features a compact, blue PCB design with a standard 20-pin black connector on one side and labeled breakout pads on the other. The 1-Bit ISP board is specifically configured for single-data-line eMMC interfaces, featuring pinouts for CMD, CLK, DAT0, and variable voltage references (1.8V and 2.8V) along with GND. The 4-Bit ISP board expands this capability with additional data lines (DAT0-DAT3) for faster communication, while the JTAG board provides standard test access port signals like TDI, TDO, TMS, and TCK. The set is an essential toolkit for professional mobile repair technicians seeking reliable and stable connections for advanced hardware servicing.