Some modified FTF files for older Sony devices utilize a modified kernel or a specific version of Android (e.g., a downgrade to 4.3 or a specific 5.0 build) that has a known vulnerability in the setupwizard or recovery mode.
If you are stuck on a lock screen and cannot access the device, the most reliable method is flashing a using Flashtool (by Androxyde). This will wipe the "UserData" partition, effectively removing the PIN/Pattern/Password lock. sony c6802 lock remove ftf
Flashing your device will erase all internal data, including photos, contacts, and apps. Ensure you know your Google account login details, as you may be prompted to enter them after the reset due to Android Factory Reset Protection (FRP). Prerequisites Some modified FTF files for older Sony devices
: Unplug the phone and hold the Power button to turn it on. The first boot may take up to 10 minutes. 🔄 Alternative: Official Sony Repair Flashing your device will erase all internal data,
firmware. On the right side under the "Wipe" section, ensure is checked to remove the lock. Initiate Flashing : Click the Flash button
, and connect to PC) while the Flashtool is running with the selected firmware. Key Requirement : You must ensure the "Wipe Data"