Ever since DU Battery Saver moved a couple of apps to the SD Card, my phone has been deleting all apps from my External SD Card and all trace of the apps except for the string name of the app, example com.Facebook.orca which is FB Messenger. The icon turns to a grey & unable one and the app/apk shows no bytes, megabyes or GBs in application manager. I am just about ready to throw my +Samsung Canada
Galaxy S4 onto a hard wall, hit it with a ball peen hammer without its protective case on it, I am so frustrated!!!! Can't wait to buy the upcoming 2016 +Nexus
6P with 4G RAM, 64G+ internal storage, Snapdragon 820 processor, larger battery, 4000 mAh when it comes out and no more external SD card!!!!!
I deleted DU after it deleted my apps and went back to 360 Antivirus. But the damage is still done and I can not find a way to fix it.