Just tell the steps bro please..
because I do not have a notebook or pc or Mac
I'll try tomorrow to borrow my friend's notebook
1.) Download iFile. ( I'm considering that you know how to rename folders in iFile. )
2.) Then move to this path - /private/var/stash/_.wYfrAS to _Wallpaper. (Please note there will be around 3-4 folders with name similar to what i mentioned above. You need to check inside each folder and see which contains the Wallpaper folder. Then rename the Wallpaper folder in: /private/var/stash/.zYyrGD to _Wallpaper or rename it to anything. I renamed it as _Wallpaper. )
3.) Then force closed the settings app just to be sure using the appswitcher and then reopen the Stills option and it will show you No photo/item available.
4.) Then again force close the Settings app again through the App Switcher.
5.) Then rename the Wallpaper folder in: /private/var/stash/.zYyrGD to Wallpaper. i.e. Rename the _Wallpaper folder to Wallpaper.
And then head back to Settings.app > Wallpaper and see the magic.
After doing this you'll have your wallpapers working again but i dont think you will be able to get your backup work again.
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If you want your backup then you can try one thing:
Don't restore to 8.1.2 . Click on Check for Update + shift button on windows or option button in Mac and choose the ipsw 8.1.2 file and let the process gets complete. PLease note you will loose your messages history and rest everything will be there.
and then you can jailbreak and follow the above steps.
I think it is a better option becoz in older option you'll loose everything. But in this case you're loosing only your messages chat history.
