Steps
The tool should show "Device connected in flash mode" and begin the process. Do not disconnect until you see a "Flashing finished" message.
Click on the located in the top-left corner of the interface. Select Flashmode from the boot mode prompt and click OK .
Each lock type can become problematic if forgotten, and recovering access varies by method.
Do not touch, move, or disconnect the USB cable during this phase, as an interruption can brick the hardware. sony c6802 lock remove ftf
. Flashtool will prepare the files and then prompt you to connect your phone. Connect in Flash Mode Power off your phone completely. Volume Down button
: Ensure the Xperia flashmode drivers are installed (usually found in the drivers folder of the Flashtool installation directory). Step-by-Step Instructions
The Sony C6802 lock remove FTF method is a technically viable, cost-free alternative to paid SIM unlocking for advanced users. It requires bootloader unlock, TA backup, and careful flashing using Flashtool. While effective, it carries risks including loss of DRM keys and potential bricking. For most users, a standard unlock code is safer. However, for developers, forensic analysts, or users with locked bootloaders, the FTF approach remains a powerful tool—provided the firmware source is trusted and backups are maintained.
After successfully removing the lock via FTF, take these steps: Steps The tool should show "Device connected in
Click the button at the bottom right. The software will begin preparing the files. This process may take a few minutes. Step 4: Boot the Sony C6802 into Flashmode
Did you encounter any in the Flashtool log? Is your PC running Windows 10 or Windows 11 ? Does your phone show a green LED light when connected? Share public link
+-------------------------------------------------------------+ | FLASHTOOL CONFIG BOX | +-------------------------------------------------------------+ | Firmware: Xperia Z Ultra (C6802) | +-------------------------------------------------------------+ | Wipe Options (MUST CHECK): | | [X] USERDATA <-- Removes screen lock / data | | [X] CACHE <-- Clears temporary system files | +-------------------------------------------------------------+ | Exclude Options: | | [ ] Leave default unchecked unless troubleshooting | +-------------------------------------------------------------+ | [ FLASH ] | +-------------------------------------------------------------+ Step 4: Boot the Sony C6802 into Flashmode
Flashtool will automatically detect the connection and begin flashing the FTF firmware. Select Flashmode from the boot mode prompt and click OK
The lock remove FTF works by either:
The flashing process will begin automatically once the connection is verified. Monitor the progress bar inside Flashtool.
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