Samsung Z Fold5 UFS ISP Pinout
In this article, we’ll show you the Samsung Z Fold5UFS ISP pinout it’s useful for tasks such as writing a dump file, chip reprogramming, flashing firmware, removing the FRP lock, bypassing FRP, unlocking the device, and restoring the stock firmware with any UFS repair tool.
Unlike standard USB flashing, the ISP method connects directly to the device’s UFS chip. This guide provides the tested pinout and the technical details you need to perform repairs using tools like UFI Box, EasyJTAG Plus, or Flash64.
What is ISP pinout?
ISP in system programming allows us to have direct access to the eMMC/UFS memory with the device still soldered to the PCB (printed circuit board) using an proper box/dongle, such as Flash64 UFI, Easy-JTAG, or Medusa.
By using the ISP pinout, we can perform operations such as a full dump, firmware update, boot repair, FRP removal, and security backup without requiring a chip-off procedure. That way, we reduce our time, costs, and risks of damaging the PCB
Samsung Z Fold5 ISP Pinout Image:
Remove the back panel carefully. The glue will be robust because the Samsung Z Fold5 has high IP ratings (IP68/69). Take care when using a heat gun and cutting tool. To view the UFS chip area, remove the motherboard shield.
- TXON (Transmit ON)
- TXOP (Transmit Positive)
- RXON (Receive ON)
- RXOP (Receive Positive)
Tip: Use a microscope or a 10x magnifier to identify the points correctly. Don’t depend only on diagrams; confirm the layout visually.
Required Tools for ISP Pinout:
- Make sure your table is set up with the right tools before jumping in:
- UFI Box, Flash64, or EasyJtag
- 0.1mm – 0.3mm jumper wire
- Fine tip soldering iron
- Isopropyl Cleaner (IPA 99%)
- Soldering flux
- Multimeter (for checking continuity)
How to Connect Samsung Z Fold5 ISP to the EMMC Box
1. Hardware Preparation
- Safety: Remove the battery to prevent electrical shorts or voltage surges.
- Cleaning: Use isopropyl alcohol to clean the ISP points on the PCB.
- Soldering: Securely jumper wires to the TXOP, TXON, and RXOP points.
- Verification: Use a multimeter to check for shorts between lines or to ground.
2. Box Connection
- Connect the jumper wires to your UFI Box, EasyJTAG, or Medusa Pro adapter according to the tool’s specific pinout.
- Supply power to the board via the VCC/VCCQ pins or by connecting a USB cable to the device.
3. Software Configuration
- Open the eMMC/UFS tool software.
- Select Identify eMMC/UFS.
- If successful, the chip information (CID, User Area size) will populate the log.
- Navigate to User Partition > Special Task.
- Select Reset FRP or Factory Reset to complete the operation.
