Samsung A05 SM-A055F/M EMMC ISP Pinout

The Samsung A05 SM-A055F/M EMMC ISP pinout is a crucial method for mobile technicians when dealing with devices that fail to boot or are locked by FRP

The EMMC ISP (In-System Programming) pinout for this model is located near the EMMC chip, which is typically covered by a metal shield. The device uses the MediaTek Helio G85 chipset, and due to its locked bootloader and USB, the traditional methods of recovery like Download mode are not feasible. By connecting to the EMMC ISP points, you can bypass these restrictions and directly access the device’s firmware to repair dead boot issues or reset FRP locks.

Post Index:Samsung A05 SM-A055F/M EMMC The required pins for this method include CMD (command), CLK (clock), DAT0 (data line), VCC (power supply), and GND (ground). For best results, use a magnifier or microscope to precisely locate these pins, and tools like the UFI Box, Easy JTAG, or Medusa Pro are essential for making a successful connection and executing repair operations. This approach is highly beneficial in situations where the phone is unresponsive, incorrectly flashed, or won’t power on.

Samsung A05 SM-A055F/M EMMC ISP Pinout

Are you a mobile technician struggling with an FRP lock on a Samsung A05 (SM‑A055F/M)? Using the ISP eMMC pinout with tools like UnlocTool, Easy JTag, or a UFI box can help you bypass the FRP lock and reset user data—saving time and avoiding expensive service‑center repairs. This method works quickly for removing FRP, pattern, and screen locks, but requires a working USB connection and a fully charged battery (if you see “USB not recognized,” the USB connection is the issue). Below you’ll find the ISP pinout and a step‑by‑step guide to walk you through the process. If you have questions, leave a comment and I’ll do my best to help.

⚙️ What is ISP Pinout (In-System Programming)?

In simple terms, ISP allows you to access the EMMC chip without removing it from the device. All you need to do is locate the correct pinout on the board and use a compatible EMMC tool like UFI, Easy JTAG, or Medusa Pro to connect directly to the chip. This method lets you perform tasks like flashing, unlocking, or repairing the device without disassembling it completely.

ISP pinout is invaluable when

a phone is dead (black screen, won’t boot, or won’t charge), when FRP blocks you and ADB, fastboot, or OTG bypasses aren’t available, when you need to dump firmware from a working unit to repair a dead one, when you’re performing boot repairs or restoring partitions, or when the phone shows up as “unknown” on a PC and EDL mode isn’t working.

How to Use Samsung A05 SM-A055F/M EMMC ISP Pinout

Now we’re diving into the technical part. The Samsung Galaxy A05 SM-A055F/M shares a similar hardware layout with several other models, but the pin locations can vary slightly. You’ll find the ISP points near the EMMC chip, typically under a metal shield.

Also read: Samsung M35 5G M356B ISP Pinout Solution

The Samsung A05 SM-A055F is powered by the MediaTek Helio G85 and comes with a locked USB and bootloader, making it impossible to boot into Download mode without proper authorization.

Key EMMC ISP Pin Labels:

CMD – Command Line

CLK – Clock

DAT0 – Data Line 0

VCC / VCCQ – Power Supply for EMMC

GND – Ground

💡 Note: It’s crucial to use a microscope or at least a 10x magnifier to accurately identify the points. Don’t rely solely on diagrams—always visually confirm the layout.

Required Tools for ISP Pinout:

Before starting, make sure your workbench is equipped with the right tools:

UFI Box, Easy JTAG, or Medusa Pro

0.1mm – 0.3mm jumper wire

Fine-tip soldering iron

Isopropyl Alcohol (IPA 99%)

Soldering flux

Multimeter (for checking continuity)

How to Connect ISP to EMMC Box:

Open the back panel of the device.

Connect the jumper wires to the correct ISP pinout on the board.

Also read: samsung galaxy s25+ sm-s936b isp pinout solution

Attach the other ends of the wires to your UFI Box.

Plug the device into your PC using a USB cable.

Open Device Manager on your PC.

You should see your device listed there—run the UFI Box software and locate the scatter file to proceed.