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Ever been stuck trying to manage FRP, change CSC, or handle tricky ADB tasks across multiple brands? QST Pro Tool v4 is a compact, practical toolbox for technicians and power users that brings Samsung, LG and Xiaomi servicing into one app — FRP bypasses, CSC management, ADB/port utilities, VoLTE/network tools, app management and MTK utilities are all included.

QST Pro Tool v4 — Free download & quick guide

Why QST Pro Tool?

QST Pro bundles many day-to-day mobile service tasks into a single UI so you don’t hop between half a dozen apps. It’s especially useful for:

  • Samsung FRP & CSC work
  • LG ADB/port management
  • Xiaomi VoLTE, network and fastboot tasks
  • General ADB/MTP commands, app management and MTK repair tools

Key Features (Overview)

Samsung tools

  • FRP bypass: Test mode, ADB, QR, Knox/MDM-aware methods; support for new & legacy FRP techniques.
  • CSC management: Change CSC, set carriers (VZW, ATT, TMB, SPR, GCF), fast CSC via port/modem, enable/disable CSC SIM.
  • Translation & UI fixes: Arabic translation packs, fix dark mode issues, remove translations.
  • Misc Samsung: Remove preinstalled apps, enable/disable system updates, show mobile data icon, stop activation flows on some carriers.

LG tools

  • ADB functions: Hidden menus, APN access, open diag/band menus, stop LG activation.
  • Port functions: Skip lock screen, zero SPC, reboot to download, factory format via modem/port.

Xiaomi / Mi tools

  • FRP & fastboot: FRP reset for SPD devices, fastboot FRP (unlocked bootloader required), read device info, wipe/factory reset.
  • Network & VoLTE: Open IMS, enable VoLTE (Android 11+), engineering/IMS tools, APN management.

App & System utilities

  • Install/uninstall/disable apps, batch app operations, list system/user/disabled apps, force-stop, clear data.
  • Standard ADB actions: reboot (normal/recovery/bootloader/EDL/fastboot), enable diag, open browser (YouTube/Maps/Galaxy Store) via MTP.

MTK tools

  • Lock/unlock bootloader, erase/wipe FRP, remove demo mode, MI account removal, wipe data (with/without media), persistent repair ops.

Commands & Utilities

  • General commands (enable 4G, fix 3G on some models), MTP mode commands, port-level formatting, and quick reboot/flash helpers.

Who should use it?

  • Mobile repair technicians who want one tool to cover Samsung, LG and Xiaomi common service tasks.
  • Advanced users who perform FRP removals, CSC swaps, network tweaks or MTK repairs.

Quick start — how to use

  1. Download and extract the QST Pro Tool zip.
  2. Move files to C:\ (recommended).
  3. Install the setup following on-screen instructions.
  4. Run AndroidUtility.exe as administrator.
  5. If drivers are already installed, you can skip driver setup.

Notes & precautions

  • Use officially trusted sources to download service tools.
  • Some operations (FRP bypass, IMEI/CP/low-level flashing) can be risky and may void warranties or breach carrier policies — use responsibly and only on devices you own or have authorization to service.
  • Keep device drivers up to date for best detection and reliability.



QST Pro Tool v4 Link