Launch (use Flashtool64.exe if running a 64-bit operating system).
Complete Guide: Sony C6802 Lock Remove Using FTF File (Xperia Z Ultra)
: Once the log shows "Flashing finished," unplug your phone and power it on. The first boot may take several minutes. Alternative: Sony Xperia Companion If you prefer an official tool, use the Xperia Companion "Software Repair" feature. Software Repair without connecting the phone.
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.
Here is the step-by-step guide:
If you are looking for the latest firmware or specifically a 14.6.A.1.236-based lock removal file, they are commonly available through specialized mobile support sites.
Once the file is in place, you can configure Flashtool to target the lock screen partitions.
Here are the primary methods for using FTF files to remove locks from your Sony C6802.
Comprehensive Guide to Removing the Screen Lock on Sony Xperia Z Ultra (C6802) Using an FTF Firmware File sony c6802 lock remove ftf
Use the Google Find My Device website to remotely erase your Xperia Z Ultra. 4. Troubleshooting
Sony Xperia Z Ultra (C6802) Pattern/Pin Lock Removal Guide Using Flashtool
Before starting the process, you must gather the necessary files and prepare your computer. Flashing firmware carries a slight risk of bricking your device if done incorrectly, so ensure you follow each requirement carefully.
A "Bootmode Chooser" prompt will appear. Select and click OK . Launch (use Flashtool64
Sony Xperia Z Ultra (C6802 – 3G variant) Subject: Using FTF (FlashTool Firmware) files to remove a network/SIM lock. Verdict: FTF firmware alone cannot remove a permanent network SIM lock. FTF flashing can only:
: A Windows PC with the Sony Flashtool (also known as Emma or Sony Mobile Flasher) installed.
: If flashing completes but the phone is stuck on the Sony logo or restarts repeatedly, try performing a factory reset from the recovery menu if you can access it. If not, re-flash the FTF file once more, ensuring the "Wipe userdata" and "Wipe cache" options are checked.
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