..iphone 5s (gsm),jailbreaking and having ios 6 slide to unlock feature,and ios 6 home screen theme.

……step one/1:-.jailbreak your ios device……:-.

……step two/2:-.if you want to downgrade your device,from ios 12.5.7 to ios 10.3.3/ios 10.3.2:-.

……step three/3:-.cydia repo:-.