If you are a mobile technician working on a bricked Samsung galaxy Tab S10+ SM-X820, or you need to bypass FRP lock, Pattern, MDM lock without USB access, this guide provides everything you need to successfully connect your Samsung Tab S10+ motherboard to your preferred EMMC tool (like Flash64 Box, UFI Box, Easy JTAG Plus, or Medusa Pro) to read, write, or erase data directly from the memory chip.
What is ISP Pinout?
ISP stands for In-System Programming. In the mobile repair field, it refers to an advanced hardware-level method used to read, write, or erase a smartphone’s memory chip (such as eMMC, eMCP, or UFS) directly on the motherboard, without desoldering or physically removing the chip from the board.
Samsung Tab S10+ SM-X820 ISP Pinout UFS Chip:
Carefully take off the back cover. Check your heat and tools. The factory adhesive on the Samsung Galaxy Tab S10+ can be quite strong, so take your time to avoid breaking the back panel or damaging internal flex cables.
Pinout Connections:
Rst (Reset)
Txop (Transmit Data Positive)
Txon (Transmit Data Negative)
Rxop (Receive Data Positive)
Rxon (Receive Data Negative)
GND (Ground – Connect to any ground point)
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 Tab S10+ SM-X820 ISP to the UFS Box
- Remove the battery from the phone—this is very important to prevent voltage issues.
- Clean the PC board area with isopropyl alcohol.
- Connect jumper wires to Rst, Txop, Txon, Rxop, and Rxon points with care using solder.
- Connect the wires to your UFS tool, following the tool’s pinout.
- Double-check each wire using a multimeter to ensure there are no shorts.
- Connect to UFI or Easy JTAG.
- In the UFI or Easy JTAG software:
- Select Identify eMMC/UFS
- You can now proceed to wipe the FRP partition, factory reset, or write a dump file to revive the dead boot.
If you have the right connection, you will see the EMMC chip information in the tool window.
