Dowgrade from 10.2.2.1531 to 10.2.1.3247 + Radio: 10.2.1.3140

Is it safe to downgrade from 10.2.2.1531 to 10.2.1.3247 + Radio: 10.2.1.3140?
I can not use 10.2.2.1531 because it has this stupid "APN editing disabled" bug that keeps popping up in random versions.

Can I use Sachesi for downgrade?
I do not have access to computer with MS Windows.

you can downgrade to whatever version autoloader you can find.

Originally Posted by RADEoN1337

you can downgrade to whatever version autoloader you can find.

I rather not use autoloader because:

I do not have access to computer with MS Windows.

Still unclear, is it safe to downgrade using Sachesi or not :(
What steps must be taken, if I use Sachesi for downgrade?