: Most unlocking tools modify low-level system files. Your antivirus may trigger a false positive. You may need to temporarily disable real-time protection. Step-by-Step Installation Guide

: The device security patch level is too new for the current tool version.

Bypasses carrier restrictions directly via USB.

Technical support and historical versions are often hosted at GSM-Forum . How to Use the S1 Network Tool

Disclaimer: This article is for educational purposes only. Unlocking a phone without carrier permission may violate your terms of service. Always check local laws and your carrier’s policy before proceeding.

Disable your real-time antivirus software temporarily. Many servicing tools are flagged as false positives due to the nature of firmware modification scripts. Step 2: Download the Package

As of 2024-2025, the hunt for an version is more intense than ever. But is the updated tool real? Is it safe? And does it still work on modern operating systems?

: Uses "Unlock-by-Patch" via a secure server in signed mode to ensure reliability.

Before you begin, ensure you have:

While many network unlocks are non-destructive, there is always a risk of bricking your device or losing data when modifying system-level partitions. Always backup your data first.

Click the or Read Info button inside the S1 tool interface. The software will scan the COM ports and display your device's model number, IMEI, and current lock status in the log window. 5. Execute the Unlock Action

Before downloading or using the tool, you can check if your Sony device requires this specific method: Power on the phone without a SIM card. Dial *#*#7378423#*#* to open the Service Menu. Go to > SIM lock .

On Windows 10/11:

Right-click the S1_Unlock_Tool.exe file on your computer and select . 3. Connect the Device

: For standard network locks, it is often safer to request a free unlock code directly from your carrier. Unlock bootloader Xperia XA2 - Devices - Sailfish OS Forum