Complete Guide

1. Download the Binary

Get the latest prebuilt executable for your OS from the Download page. Place it in a folder you can access from the terminal.

Windows: use PowerShell or Command Prompt. Linux/macOS: use Terminal and run chmod +x samloader.

2. Open a Terminal as Admin (Windows)

Right-click PowerShell → Run as Administrator. Change directory to the folder containing samloader.

cd C:\path\to\samloader-folder
.\samloader.exe --help

3. Check Available Firmware

Replace the model and region with your device values.

.\samloader.exe check-update --model SM-A705MN --region XSP

On Linux/macOS omit .\ and use ./samloader.

4. Download Firmware (Auto Decrypt)

samloader downloads and decrypts on the fly. Large packages can take time; resume is supported if interrupted.

.\samloader.exe download --model SM-A705MN --region XSP --verbose

5. Verify MD5

Always verify the downloaded package before flashing.

.\samloader.exe verify-md5 path\to\firmware.tar.md5

6. Detect Device

Boot the phone into Download Mode and connect USB. Then run:

.\samloader.exe detect

Download Mode: power off → hold Vol Down + Power (or Vol Down + Vol Up + Power) while plugging USB → confirm with Vol Up.

7. Flash Firmware

Flash only the correct firmware for your model. Do not disconnect the cable during the process.

.\samloader.exe flash path\to\firmware.tar.md5 --usb-backend libusb

First boot after a full flash can take several minutes. Do not force-restart the device.