Vivo Y05 EMMC ISP Pinout
If you are a mobile technician dealing with a Vivo Y05 (model with Unisoc T7225 chipset) that is pattern-locked, stuck on logo, or has a corrupted boot, the ISP (In-System Programming) method is probably the most reliable way to bypass these issues without removing the EMMC chip.
Unlike standard USB flashing, the ISP method connects directly to the device’s eMMC. 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
Vivo Y05 ISP Pinout EMMC Ways Image:
Remove the back panel carefully. The glue will be robust because the Vivo Y05 has high IP ratings (IP68/69). Take care when using a heat gun and cutting tool. To view the eMMC/UFS chip area, remove the motherboard shield.
- CMD – Command line
- CLK – Clock signal
- DAT0 – Data line 0
- VCC / VCCQ – Power supply for the EMMC (can be powered via USB)
- GND – Ground connection
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 Vivo Y05 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 CLK, CMD, and DATA0 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.
