Backup encryption

[Owley]

Hello

Today I got my Smartphone (z2) - repaired - sent back.
But I had to determine that my os got updated.
Therefore I am unable to restore my backup with the Backup & Restore App which was preinstalled on my z2.
Now my question is:
Am I able to decrypt the backupped files myself, because I protected them with a password or do I have to rollback my os?
If so, could someone of you please send me a compatible link of android 4.4.2?

I would really appreciate any help.
Awaiting your responses.

Thanks and good night at all.

[Uliwooly · Accepted solution]

You will have to roll back, check the XDA forum or contact your local Xperia Care to downgrade

[Owley]

Well, ok 😕
But still thanks for your quick answer

[Uliwooly]

It's quite simple

http://talk.sonymobile.com/t5/Xperia-Z-ZL-ZR/How-to-manually-update-downgrade-root-2013-Xperias/td-p...