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: You need the stock FTF file for the C6802. You can download this directly through XperiFirm , a tool integrated with newer versions of Flashtool. Step-by-Step Removal Guide 1. Install Sony Drivers
| Lock Type | Cause | Fixable via FTF? | |-----------|-------|------------------| | (Subset lock) | Carrier restriction to specific networks | ❌ No | | Soft lock (e.g., “Enter unlock code” loop) | Corrupted NVRAM/TA after wrong flash | ✅ Yes | | FRP lock (Google account) | Factory Reset Protection | ❌ No (requires other tools) | | Bootloader lock | Prevents custom kernel flashing | ❌ No (needs official unlock) | sony c6802 lock remove ftf
Select and Fastboot Drivers from the checklist, then complete the installation wizard. : You need the stock FTF file for the C6802
Once you click , Flashtool will prepare the files and then prompt you to connect your phone. Power off your Sony Xperia Z Ultra completely. Press and hold the Volume Down button . Install Sony Drivers | Lock Type | Cause | Fixable via FTF
Standard flashing will wipe your internal storage, apps, contacts, and settings.
: Use a high-quality original Sony micro-USB cable.