Are you a mobile technician facing FRP Lock issues, and you want to unlock your Samsung A05 SM-A055F/M? The ISP EMMC PinOUT connection offers many benefits. Utilising the unloctool allows you to bypass the FRP lock and reset your user data, saving you time and money by avoiding costly repairs or service center visits. This post will show you the ISP Pinout for your Samsung A05 SM-A055F/M, which is easy with our step-by-step guide below.
The Easy JTag and UFI Box can bypass the Samsung A05 SM-A055F/M FRP pattern and screen locks. Regardless of your knowledge of Android software, this method will quickly resolve the issue. If you see the message “USB not recognized,” your USB doesn’t work. You can only use this method if your battery is fully charged and your USB port works properly. Please feel free to leave your questions in the comments; I will do my best to answer them.
⚙️ What is ISP Pinout (In-System Programming)?
In simple language, ISP lets you access the EMMC chip without pulling it out. You simply have to identify the appropriate pinout of the board, and you have to utilize a supported EMMC tool such as UFI, Easy JTAG, or Medusa Pro to attach it directly.
Isp Pinout is useful when:
- Phone is dead (black screen, no boot, no charging)
- FRP is locked, and you can’t use ADB, fastboot, or OTG bypass
- You need to dump firmware from a working unit to repair a dead one
- You’re working on a boot repair or partition restore
- Phone is detected as “unknown” in PC (EDL not working)
How to Use Samsung A05 SM-A055F/M EMMC ISP Pinout
Here’s where things get technical. The Samsung Galaxy A05 SM-A055F/M shares a hardware layout with several models, but the actual pin locations can vary slightly. You’ll find the ISP points near the EMMC chip under the metal shield.
The latest Samsung A05 SM-A055F is powered by Mediatek Helio G85 and comes with locked USB & bootloader. So, it is impossible to boot the device into Download mode without authorization.
EMMC ISP Pin Labels You Need:
CMD – Command Line
CLK – Clock
DAT0 – Data line 0
VCC / VCCQ – Power supply for EMMC
GND – Ground
💡 Note: Use a microscope or a 10x magnifier to identify the points correctly. Don’t rely on diagrams alone—confirm the layout visually.
When repairing dead boot problems, especially for devices like the Samsung A05 SM-A055F/M, the Easy JTAG Plus and UFI Box dongles are great for mobile repair. They are important for scenarios where the phone has been incorrectly flashed and does not display the startup logo, and is no longer responding to power.
Required Tools for ISP Pinout:
- Make sure your bench is set up with the right tools before jumping in:
- UFI Box, Easy JTAG, or Medusa Pro
- 0.1mm – 0.3mm jumper wire
- Fine tip soldering iron
- Isopropyl Cleaner (IPA 99%)
- Soldering flux
- Multimeter (for checking continuity)
How to Connect ISP to EMMC Box
- Open the back panel of the device first.
- Connect the wire with the correct ISP Pinout.
- Then connect the ISP Pinout to the UFi Box and connect your device via USB cable to the PC.
- Go to the Device Manager on your PC.
- You will see your device in the list > Run the UFi Box and locate the scatter file.
- Samsung A05 SM-A055F/M ISP PinOUT to Hard Reset / FRP Bypass
- Go to the user Partition / Special Task and click on Reset FRP on the UFI Box.
- You’re done.
