Before blaming the locking block, rule out these common FTF culprits:

. The tool will take a moment to prepare the files and then prompt you to connect the device. Connect in Flash Mode Power off your Xperia E5 completely. Press and hold the Volume Down

: The Xperia Flashtool is the standard software used to write these files to the device.

Hold the button and connect it to your PC via a USB cable. The LED should turn green, indicating it is in Flash Mode. Complete the Process:

Place the downloaded .ftf file into the C:\Users\[YourUsername]\.flashTool\firmwares folder on your PC.