Sony C6802 Lock Remove Ftf May 2026

To remove the screen lock (pattern, PIN, or password) on a Sony Xperia Z Ultra (C6802) Go to product viewer dialog for this item.

using an FTF file, you can flash the original stock firmware using the Flashtool. This process performs a factory reset and removes all user settings, including the lock screen. Prerequisites Computer: PC with Flashtool installed. Drivers: Install Sony Flash Device drivers

(often found in the Flashtool/drivers folder) so the PC recognizes the phone in Flash Mode.

FTF File: Download the official stock firmware (.ftf file) specifically for the model. Battery: Ensure the device is at least 80% charged. Flashing Procedure sony c6802 lock remove ftf

Prepare Flashtool: Open Flashtool on your PC and click the "Flash" (lightning bolt) icon.

Select Firmware: Choose the C6802 FTF file you downloaded. In the "Wipe" section, ensure USERDATA (and CACHE) is checked to guarantee the lock is removed.

Initiate Flash: Click "Flash" and wait for a prompt asking you to connect the device. Connect in Flash Mode: Turn off your Xperia Z Ultra completely. Press and hold the Volume Down button. To remove the screen lock (pattern, PIN, or

While holding the button, connect the phone to your PC via USB cable.

Flashing Process: The tool should show "Device connected in flash mode" and begin the process. Do not disconnect until you see a "Flashing finished" message.

Reboot: Disconnect and turn on the phone. The first boot will take longer than usual. Alternative Methods (No PC Required) Download and install the Xperia Flash Tool on your computer

If you cannot use Flashtool, you can try these methods, though they also erase all data:

Report: Sony Xperia Z Ultra (C6802) Lock Removal via FTF File

Subject: Analysis of the "FTF Lock Remove" method for Sony Xperia C6802. Device: Sony Xperia Z Ultra (Model C6802) Method: Flashing FTF (Flash Tool For Xperia) firmware. Purpose: Removing Pattern/PIN/Password or Google FRP Lock.

Author:

[Author Name – Institutional or Independent Researcher]

Step 2: Install the Xperia Flash Tool (XFT)

  • Download and install the Xperia Flash Tool on your computer. This tool will help you flash the FTF file to your device.

Step 1: Install Flashtool & Drivers

  • Install Flashtool on your PC.
  • Navigate to C:\Flashtool\drivers and run Flashtool-drivers.exe.
  • Check:
    • Flashmode Drivers
    • Fastboot Drivers
    • Xperia Z Ultra (C68xx) driver
  • Complete the installation.

4.1. “My phone says ‘Enter Network Unlock Code’” after flashing wrong firmware

  • Cause: Mismatched customization ID or corrupted modem configuration.
  • FTF solution: Flash correct stock generic firmware (e.g., C6802_14.6.A.1.236_Generic). This may reset the unlock counter display but not bypass the lock.

2.1 Sony C6802 Specifications

  • Model: Xperia Z Ultra
  • Chipset: Qualcomm Snapdragon 800 (MSM8974)
  • Android version: Up to 5.1.1 Lollipop (official)
  • Baseband: Modem firmware handling SIM lock logic

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