How to Root the Sony Xperia Acro S, Android Rom Updates

1.  Double-click on flashtool-0.9.11.0-windows.exe you downloaded above and follow the on-screen instructions to install it.



2.  Copy the Xperia_Acro_S_LT26w_6.2.B.0.211_KernelOnly.ftf file you downloaded above to C:\Flashtool\firmwares on your hard drive.

3.  Open the Flashtool application after installation and click on the Flash icon (the one with the thunder symbol).

4.  You should be presented with two options:  Flashmode and Fastboot Mode.  Select Flashmode.

5. choose Xperia_Acro_S_LT26w_6.2.B.0.211_KernelOnly.ftf and click on OK.  Follow the on-screen instructions on how to boot your device into fastboot mode and connect your device.  Also, make sure “No Final Verification” is marked.

6.  Reboot device.