To establish a direct connection with the device's eMMC without removing the chip, you must solder wires to these specific points on the motherboard: : Data line for transmitting information. : Command line used for device initialisation. : Clock signal to synchronise data transfer. VCC & VCCQ : Power supply lines (typically 2.8V and 1.8V). : Ground connection to complete the circuit. Usage and Tools

Typically situated adjacent to the data trace array. Requires a steady hand and thin jumper wire (0.02mm recommended). 3. CLK (Clock)

Use an ESD-safe plastic pry tool to remove the back cover and unscrew the protective mid-frame plates.

: The SM-M017F motherboard uses "pasted" eMMC (MCP) chips in some versions. Avoid excessive heat near the eMMC to prevent chip failure.

| Problem | Solution | |--------------------------|---------------------------------------------------------------| | No detection (timeout) | Swap DAT0 with DAT1/DAT2/DAT3 (try each). Check CLK resistor. | | CRC errors | Too long wires; shorten or use shielded twisted pair. | | Voltage mismatch | Measure VccQ on board – if 3.3V, use 3.3V on box I/O. | | Phone boots when soldered| Remove battery, use box power only (disconnect phone Vcc). | | Unstable read/write | Add 10-22pF capacitor from CLK to GND near eMMC. |

If done correctly, the software will show the eMMC information (Manufacturer: Samsung, Capacity, etc.). 5. Data Recovery/Firmware Repair Once connected, you can: Dump the User Data partition for data recovery. Flash a new Dump file to repair a hard-bricked phone. Repair RPMB or partition tables. Troubleshooting ISP Connection If the software cannot detect the eMMC:

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To establish a successful connection, you must solder fine wires to these six essential points on the SM-M017F logic board: The primary data line for communication. CMD (Command): The line used to send commands to the eMMC.

Keep ISP wires as short as possible (ideally under 10cm) to prevent data corruption during high-speed transfers.

The ISP (In-System Programming) pinout is a critical hardware solution used for advanced mobile repairs, such as dead boot repair , FRP bypass , or user data recovery . By connecting directly to the device's eMMC (Embedded MultiMediaCard) via specific test points on the motherboard, technicians can communicate with the memory chip without removing it. ISP Pinout Technical Details

For standard FRP removal without hardware soldering, tools like Dr.Fone - Screen Unlock are used. Safety Warning