root

[Novax]

I rooter my xperia M, there soon six months but there is too much of a bug that so I would put the phone to factory condition but its root precedent remmet me so I decide to use Flashtool to restore the orginal firmware but it shows me errors so if anyone could help me, it would be nice

[Thommo]

When using Flashtools did you make sure that USB debugging was enabled on your phone

[anmg]

use official sony tool to reinstall firmware.

http://www.sonymobile.com/global-en/tools/pc-companion/