Flashing an FTF file with FlashTool completely overwrites the phone’s operating system. This has the effect of removing any screen lock, pattern, PIN, or FRP lock that may be present, because the device is returned to a pristine, out‑of‑the‑box state.
Select and Fastboot Drivers from the checklist, then click Install. (If using Windows 10 or 11, you may need to disable Driver Signature Enforcement first). Step 2: Prepare the FTF Firmware File
The LED indicator on the phone should turn , indicating it has successfully entered Flashmode. sony g3311 lock remove ftf link
If the device loops on the Sony logo, pull the battery (or force-restart using Volume Up + Power) and re-flash the FTF file, ensuring all options under the "Wipe" menu are checked.
After several tense minutes of progress bars, the tool signaled "Flashing Finished." Leo disconnected the USB-C cable and held the power button. The Sony logo appeared, stayed longer than usual, and then finally revealed the welcome screen. The lock was gone. He had regained his device, though at the cost of his local files, reminding him to always keep his backups active. Need to perform this yourself? Flashing an FTF file with FlashTool completely overwrites
The primary method for regaining access to a locked device is performing a factory reset. This process reverts the device to its original out-of-the-box state.
You can download the official G3311 Nougat 7.0 FTF files from community mirrors like this link (note: use at your own risk) or via the Xperiade feature built into Flashtool. (If using Windows 10 or 11, you may
If you currently know the screen lock and simply want to reset the phone to factory settings, a standard hard reset will suffice – no flashing required.
If you cannot use XperiFirm, you can find FTF files on third-party websites like onfix.cn or xperiastockrom.com . However, be extremely cautious with these sources. Always scan any downloaded file with your antivirus software. The golden rule is to trust the FTF file from Sony's official channels first, via XperiFirm .