samsung galaxy s25+ sm-s936b isp pinout solution

samsung galaxy s25+ sm-s936b isp pinout The Samsung Galaxy S25+ SM-S936B features a UFS-based storage chip that can be accessed through specific ISP (In-System Programming)

test points located directly on the motherboard. These UFS ISP pinouts allow technicians to connect the device to professional tools such as UFI Box, Easy JTAG Plus, or Medusa Pro for advanced repair operations like firmware extraction, FRP removal, dead boot repair, and data recovery.

Post Index:To perform the procedure, carefully remove the back cover and metal shielding around the UFS storage area. The ISP test points—typically including CLK, CMD, VCC, VCCQ, GND, and DATA lines (TX/RX)—are placed near the UFS chip under a magnifying shield. Using 0.1mm to 0.3mm jumper wires, these points are connected directly to the corresponding pins on your chosen box adapter. Once properly connected, the tool can recognize the UFS memory in direct ISP mode, enabling full low-level access without needing the phone to boot or enter download mode.

This samsung galaxy s25+ sm-s936b isp pinout method is especially valuable for technicians dealing with non-booting, bricked, or FRP-locked devices. Always verify each pin under magnification before soldering, ensure correct polarity, and use minimal heat to avoid damaging the chip. Once connected, your repair software should instantly detect the UFS storage, confirming a successful pinout connection.

samsung galaxy s25+ sm-s936b isp pinout

If your Samsung Galaxy S25+ (SM-S936B, Qualcomm) is bricked, locked by a forgotten pattern, or you can’t bypass FRP, the Samsung Galaxy S25 Test Point can help restore the device quickly. Below you’ll find the ISP pinout and test-point locations for the S25+ to assist with recovery.

Also read: Samsung Galaxy Z Flip 7 ISP Pinout

This guide supplies the UFS ISP pinout for the Samsung Galaxy S25 Plus (SM-S936B), allowing access to the device’s internal storage using service tools such as UFI, EasyJTAG, or Medusa. With the correct ISP pinout you can perform tasks like firmware dumps, boot repairs, data recovery, and (where permitted) FRP recovery. In this post I’ll guide you through the ISP pinout for the Samsung SM-S936B and show the tools you’ll need, useful connection tips, and common fixes—all drawn from hands-on experience.

What is ISP (In-System Programming)?

samsung galaxy s25+ sm-s936b isp pinout In simple terms, ISP (In-System Programming) allows direct access to the EMMC or UFS chip without physically removing it from the motherboard. By identifying the correct pinout on the board and connecting it using a compatible tool such as UFI, Easy JTAG, or Medusa Pro, you can read, write, or repair the device’s firmware efficiently.

When is the ISP Pinout Useful?

The ISP pinout becomes essential in several repair and recovery scenarios, such as:

When the phone is completely dead (no display, no boot, no charging)

When FRP is locked and ADB, Fastboot, or OTG bypass methods are unavailable

When you need to dump firmware from a working device to restore a dead one

When performing boot repairs or restoring corrupted partitions

When the phone is detected as “unknown” on a PC and EDL mode doesn’t work

Samsung Galaxy S25+ SM-S936B ISP EMMC Pinout Image:

samsung galaxy s25+ sm-s936b isp pinout Here’s where it gets technical. The Samsung Galaxy S25+ SM-S936B has a similar hardware layout to some BBK-based models, but exact pin positions can vary slightly. You’ll find the ISP test points close to the EMMC chip, typically beneath a metal shield. Pro tip: Always use a microscope or at least a 10x magnifier to identify the test points accurately. Never rely solely on reference diagrams—visually confirm the layout on your specific board before proceeding.

When dealing with dead boot issues—especially on devices like the Samsung Galaxy S25+ SM-S936B—the Easy JTAG Plus and UFI Box tools are invaluable for mobile repair. These devices are particularly useful in cases where the phone has been improperly flashed, fails to show the startup logo, and no longer responds to power or charging attempts.

Required Tools for ISP Pinout:

Before you begin, make sure your workstation is equipped with the following essential tools:

UFI Box, Easy JTAG, or Medusa Pro

0.1mm – 0.3mm jumper wire

Fine-tip soldering iron

Isopropyl alcohol (IPA 99%) for cleaning

Soldering flux

Multimeter for continuity testing

How to Connect ISP to the EMMC Box:

samsung galaxy s25+ sm-s936b isp pinout Remove the phone’s back cover, then carefully disconnect the battery, fingerprint sensor, and camera module.

Unscrew and lift the motherboard from the frame, placing it safely on an anti-static mat.

Locate the TxOp, TxOn, RxOp, and RxOn pins for the eMMC/UFS chip. You may need to remove or cut through the metal shield to access them.

Also read: Samsung Galaxy A17 SM-A175F UFS ISP Pinout Diagram

Take your UFI Box (or similar tool) and detach the adapter. The adapter pins should correspond to the points identified on the motherboard.

Use fine jumper wires to connect the four data lines (TxOp, TxOn, RxOp, and RxOn) between the board and adapter. Power lines (VCC and VCCQ) will be supplied through the USB connection.

Insert the adapter into the UFI Box, then connect the box to your computer.

Reconnect the battery to the motherboard, and plug the phone into the computer via USB.

✅ If the connection is correct, your software (UFI, Easy JTAG, etc.) will automatically detect and display the EMMC chip information in the tool window.