degradation

[sp3457]

How i degrade from 15.5.A.1.5 to prev version in xperia m dual?

[_alexdon_]

Check XDA,you need a flashtool and a ftf file.

[sp3457]

Should I unlock the boot loader?

[sp3457]

There is no volume bar option when I increase volume in this update? What I'll do?

[_alexdon_ · Accepted solution]

Just set a default theme and restart.

[sp3457]

Still not showing it shows a black bar only.

[_alexdon_]

That should work,it worked for others.

[sp3457]

Thanks alexdon, that was my fault.

But one thing I want to know that how will you get these solutions(100%) working. 

[_alexdon_]

What solutions 100% working?

[sp3457]

My problems are always solved..