When the device refuses to enter download mode or gets stuck in a pre-loader loop, the is using ISP (In-System Programming) to bypass damaged software and flash the firmware directly onto the eMMC chip.
This guide provides the complete, accurate , including soldering points, voltage requirements, and a step-by-step flashing procedure. Why Do You Need the ISP Pinout for SM-M017F? Standard Samsung recovery tools (Odin) and even the MTK Bypass Utility rely on a functional USB boot path. If the Preloader is corrupted, the PC will show “USB Device Not Recognized” or the device will constantly restart. samsung m017f isp pinout
Do not confuse the eMMC with the CPU (MT6739). The eMMC is located near the SIM slot or the power management IC. The Official Samsung M017F ISP Pinout (CLK, CMD, D0, GND, VCC) After reverse-engineering the PCB and testing with multiple UFI, Easy JTAG, and Medusa boxes, the verified ISP pinout for SM-M017F is as follows: When the device refuses to enter download mode