If your Samsung S25 Ultra smartphone is Bricked, Forget pattern lock, or you are not able to unlock FRP. The Samsung S25 Ultra SM-S938B/U Test Point & UFS ISP pinout enables memory-level flashing, unlocking, and repairing the phone without removing the UFS from PCB.
Read more: Realme 11 5G EMMC ISP PinOUT
What is ISP Pinout?
ISP (In-System Programming) allows flash chip to be programmed without removing it from the PCB. It uses a specific pinout and protocol to communicate with computer.
A test point is a copper points on a PCB that allows you to boot the phone into the emergency download mode to perform flashing, unlocking or repairing the phone.
Read more: Oppo A3x ISP PinOUT EMMC Ways
Samsung S25 Ultra SM-S938B/U UFS ISP PinOUT | Test Point Image:
Here we provide ISP and Test Point Methods to carefully boot your device into Flash Mode. So, follow the below methods to successfully Reboot your Samsung S25 Ultra to UFS ISP Mode.
Also read: How to Enter Download or EDL Mode on Oppo Phone
More: QPST Tool – Qualcomm QPST Flash Tool Download Latest All Version
UFS ISP Pin Labels You Need:
- CLK
- TXOP
- TXON
- RXOP
- RXON
- GND – Ground
Tip: You can use a microscope or a 10x magnifier to identify the points correctly.
Required Tools for ISP Pinout Method
Make sure your workstation includes:
- UFI Box, Easy JTAG Plus, or Medusa Pro
- 0.1mm – 0.3mm jumper wires
- Fine-tip soldering iron
- Soldering flux
- Isopropyl Alcohol (IPA 99%)
- Multimeter
- Microscope or magnifier
Also read: Unbrick Realme 9i 5G RMX3612
How to Connect ISP to UFS or EMMC Box
- Open the back panel of the Samsung S25 Ultra
- Disassemble the phone.
- Locate the eMMC chip area on the PCB.
- Find & Solder to ISP Points
- Use the above diagram to identify these pins: CLK, TXON, TXOP, GND, and RXON, RXOP.
- Samsung S25 Ultra UFS ISP PinOUT to Hard Reset, FRP Bypass or Flash firmware.
- Or, you can use the test points.
- Connect to UFI or Easy JTAG,
- In the UFI or Easy Jtag Software:
- Click Identify UFS
- Bypass FRP: Navigate to: User Partition – Special Task – Reset FRP
- Fix Dead Boot: Select the firmware & click flash.
- That’s it.
Also: Realme X7 Pro 5G RMX2121 Network Unlock File
Warning: Incorrectly shorting test points can damage the Samsung S25 Ultra. Proceed with caution!
