Originally Posted by Sn33z3x
Can I change my lockscreen wallpaper with any photo in my phone? Now I can only choose photos taken by camera app. I also want another lockscreen app but i have to unlock twice.
There are 2 threads with lots of information about the lock screen "dilemma": THIS ONE
and THE OTHER ONE
It's worth to read everything because Fire OS has indeed a "special behavior" when it comes to this.
The custom wallpaper question needs no separate answer when you use another lock screen app but regarding the stock lock screen, you could just move the chosen picture to the camera folder.