Sony C6802 Lock Remove Ftf __link__ May 2026
To remove the screen lock (pattern, PIN, or password) on a Sony Xperia Z Ultra (C6802) using an FTF file, you must flash the device's firmware. This process will erase all user data, including photos, contacts, and apps. 🛠️ Preparation Checklist Charge your device to at least 50% battery.
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4.3. “Custom ROM says ‘No SIM card – Invalid SIM’”
- Cause: ROM missing RIL blobs or modem partition mismatch.
- FTF fix: Reflash Stock ROM via Flashtool – this restores RIL, possibly fixing the error if lock isn’t permanent.