Sony Sov33 Lock Remove Ftf Better

Removing the network lock or FRP lock from a Sony Xperia X Performance (SOV33) requires the right firmware and flashing tools. Many users prefer the FTF file method because it offers a clean slate and bypasses common software glitches that one-click unlock tools often encounter. This guide explains how to use Flashtool and the correct FTF files to manage your device effectively. Understanding the SOV33 and FTF Files

The SOV33 is the Japanese variant of the Sony Xperia X Performance, originally released for the AU network. An FTF file is the standard format for Sony Xperia firmware images. Using an FTF file allows you to manually flash the operating system, which is a critical step when trying to recover a bricked phone or prepare a device for further unlocking procedures. Clean Install: FTF flashing wipes old data.

Version Control: You can downgrade to older, more vulnerable firmware. Reliability: It uses the official Sony flashing protocol. Prerequisites Before Flashing

Before attempting to remove locks or flash new firmware, you must prepare your environment. Skipping these steps can lead to a "hard brick," making the device unusable. Essential Tools

Flashtool: Download the latest version of the Xperia Flashtool by Androxyde.

Xperifirm: This tool is usually built into Flashtool and is used to download the official SOV33 firmware.

Sony Drivers: Ensure the Fastboot and Flashmode drivers are installed on your PC. Device Preparation Battery: Charge the phone to at least 50%. sony sov33 lock remove ftf better

Backup: Flashing an FTF file will erase all internal storage.

Cable: Use a high-quality OEM USB cable to prevent connection drops. How to Remove Locks Using FTF

While a standard FTF flash does not "unlock" a SIM-locked phone (which often requires an NCK code), it is the primary method for removing Screen Locks, Pattern Locks, and FRP (Factory Reset Protection) when combined with specific flashing configurations. 1. Download the Firmware

Open Xperifirm and locate the SOV33 model. Download the latest available firmware or a specific older version if you are following a bypass exploit. Once downloaded, Flashtool will automatically convert these files into a single FTF file. 2. Configure Flashtool

Open Flashtool and click the Lightning Bolt icon. Select Flashmode. Point the source folder to where your FTF file is stored. 3. The Wipe Content (Crucial Step) To remove locks, you must check the boxes in the Wipe pane: USERDATA CACHE APPSLOG

By wiping these partitions, the phone will boot up as a brand-new device, effectively removing the local screen lock. 4. Flashing the Device Removing the network lock or FRP lock from

Click Flash. Wait for the pop-up window asking you to connect the phone. Turn off your Sony SOV33. Hold the Volume Down button and connect the USB cable. The LED should turn green, indicating Flashmode. Troubleshooting Common Issues

Drivers Not Found: Disable "Driver Signature Enforcement" in Windows 10/11 settings before installing Flashtool drivers.

Flash Aborted: This is often caused by a bad USB port. Try a USB 2.0 port instead of USB 3.0.

FRP Lock Still Present: If the phone asks for a Google account after flashing, you may need to use a specific "FRP bypass" FTF or use a tool like GSM Flasher after the initial firmware install. Professional vs. DIY Methods

Flashing an FTF is the "better" DIY method because it is free and gives you total control over the software version. However, if the goal is to use a different SIM card (Network Unlock), the FTF flash may not be enough. In those cases, you may need a third-party service to provide an unlock code or use a specialized box like Setool2.

Step 4: Flashing the FTF

  1. Open Flashtool. Click the lightning bolt icon.
  2. Select Flashmode (left icon).
  3. On the right pane, you will see your FTF listed (e.g., SO-33J_47.2.A.11.228_R8A_LockedRemoved).
  4. Check the following boxes in "WIPE":
    • ✅ AP_LOG
    • ✅ USERDATA (This will reset your phone—back up photos!)
    • ✅ CACHE
  5. Crucially: Under EXCLUDE, ensure SIM_LOCK is NOT ticked (we want to overwrite it). Exclude BASEBAND only if you want to keep original radio – but for lock removal, do NOT exclude it.
  6. Click Flash.

Wait 3–5 minutes. Flashtool will show: "Flashing finished. Please unplug and start your phone." Step 4: Flashing the FTF

How to Identify a "Good" Lock Remove FTF

If you search for “SOV33 ロック解除 FTF” (lock removal FTF), look for these specific file name clues:

Procedure

  1. Download the correct stock FTF using XperiFirm inside Flashtool. Select SOV33 (au KDDI) and download the latest Android 9 firmware (47.2.A.11.xx). Do not close XperiFirm – it automatically creates the FTF.

  2. Modify the FTF for lock removal (the “better” step):

    • Use Flashtool’s bundle creation tool to exclude the userdata.sin and persist.sin files. This prevents user data wipe.
    • To remove carrier lock, also replace amss_fsg.sin and amss_fs_1.sin with patched versions from developer communities (e.g., from XDA’s SOV33 unlock thread). These files control SIM lock verification.
    • For screen lock removal, include only system.sin, kernel.sin, and oem.sin. Flashing these overwrites the lock screen database (located in /data/system/) but keeps media files intact.

  3. Flash the modified FTF:

    • Turn off the SOV33. Press and hold Volume Down while connecting USB to enter Flashmode (green LED).
    • In Flashtool, select “Flash device” → “Flashmode” → choose your custom FTF.
    • Check “Wipe userdata” only if you want a full reset; uncheck it to preserve personal files while still removing screen lock.

  4. After flashing, reboot the device. For SIM lock removal, insert a non-au SIM card. The patched firmware should skip carrier validation. For screen lock, the device will boot without any PIN/password prompt.

Issue 3: Android 9 (Pie) Relocks the phone

Never take an OTA update to Android 9 after flashing. The G8141 Pie update re-introduces region locking. Stay on Android 8 (Oreo) 47.1.A.12.235 for permanent unlock.

Share by: