To perform ISP, you must connect to five specific test points on the motherboard. These correspond to the standard eMMC interface:
Note: While VCCQ (I/O voltage) is sometimes used, most modern programming boxes handle the necessary power negotiation through VCC and the USB connection.
The Samsung Galaxy A02s (Model Code: SM-M017F) is a widely used budget smartphone. In the world of mobile repair and forensic data recovery, "JTAG" is largely obsolete, having been replaced by ISP (In-System Programming). samsung m017f isp pinout
ISP allows technicians to communicate directly with the onboard eMMC flash memory without fully disassembling the chip. This is critical for:
You will need an ISP adapter (like Easy Jtag, Medusa, or UFI box) or a DIY microSD card adapter. The interface points are located on the motherboard, often near the eMMC chip or on dedicated test points (TPs). To perform ISP, you must connect to five
| Signal | Test Point Label | Alternative Location | eMMC Pin | Color Code (Standard) | | :--- | :--- | :--- | :--- | :--- | | VCC (3.3V) | TP_VCC | Capacitor positive leg near eMMC | Pin 7 | Red | | GND | TP_GND | Any shielding can | Pin 8, 9, 10, 11 | Black | | CLK | TP_CLK or EMMC_CLK | Resistor R3102 | Pin 2 | White | | CMD | TP_CMD or EMMC_CMD | Resistor R3101 | Pin 3 | Purple | | DAT0 | TP_DAT0 or EMMC_D0 | Resistor R3100 | Pin 5 | Yellow |
Note: Do not connect VCC to the ISP box if the motherboard has its own battery or power source. Some technicians prefer powering the board independently to avoid current draw issues. Note: While VCCQ (I/O voltage) is sometimes used,
Connect CLK, CMD, D0, and GND to your ISP box’s eMMC interface (e.g., Easy JTAG’s 4-bit SDIO port). Configure your software for 1-bit mode (D0 only) – SM-M017F may not support 4-bit ISP reliably.