[Samsung Galaxy Tab A series Questions & Answers] HarvHouHacker:
Okay, I'm reaching out to the community because I am completely at a loss here. I seem to be having an issue with my friend's tablet on it randomly unmounting the SD card. In My Files, it shows the SD card not inserted and that I have -30.66GB/0B of storage. I tried to help him trace the problem, but he can only remember that it began after an update some time ago.

In diagnosing the problem, I learned that everything clears up again on reboot, so I did everything I could to replicate the problem, including running the apps that my friend ran, and could not duplicate it. I then give it back, and then it glitches!

In trying to launch an app written to the SD card while the SD card is not seen, I get these errors:

10-09 12:58:20.462 9756 9756 W BaseDragLayer: dispatchTouchEvent, ACTION_DOWN - mTouchDispatchState = 9
10-09 12:58:20.462 9756 9756 W StatusBarController: onControllerInterceptTouchEvent return false by setting value
10-09 12:58:20.462 9756 9756 W BaseDragLayer: findActiveController return false mTouchDispatchState = 9
10-09 12:58:20.463 9756 9756 W AppStartUtils: sendActiveLaunchBroadcast() v.hasOnClickListeners() : true, iconInfo : WorkspaceItemInfo(id=2298 type=APP container=desktop targetComponent=ComponentInfo{bruenor.magicbox/bruenor.magicbox.uiGameStarterActivity} screen=0 cell(3,2) span(1,1) minSpan(1,1) rank=28 user=UserHandle{0} title=Magic DosBox hidden=0 screenType=0 lowResIcon=false runtimeStatusFlags=2)
10-09 12:58:20.465 7958 9524 E ActivityTaskManager: Checking for the Active launch isPkgEverLaunched :true, isPkgStopped : true, isPkgSuspended : false
10-09 12:58:20.477 9756 9756 W StatusBarController: onControllerInterceptTouchEvent return false by setting value
10-09 12:58:20.477 9756 9756 W BaseDragLayer: findActiveController return false mTouchDispatchState = 9
10-09 12:58:20.510 9756 9756 W StatusBarController: onControllerInterceptTouchEvent return false by setting value
10-09 12:58:20.510 9756 9756 W BaseDragLayer: findActiveController return false mTouchDispatchState = 9
10-09 12:58:20.526 9756 9756 W StatusBarController: onControllerInterceptTouchEvent return false by setting value
10-09 12:58:20.526 9756 9756 W BaseDragLayer: findActiveController return false mTouchDispatchState = 9
10-09 12:58:20.526 9756 9756 W StatusBarController: onControllerInterceptTouchEvent return false by setting value
10-09 12:58:20.526 9756 9756 W TaskViewTouchController: onControllerInterceptTouchEvent, clearState.
10-09 12:58:20.527 9756 9756 W BaseDragLayer: findActiveController return false mTouchDispatchState = 0
10-09 12:58:20.527 9756 9756 W ItemClickHandler: Icon Clicked
10-09 12:58:20.533 7958 11286 W CoverManager: getCoverState : This device is not supported cover
10-09 12:58:20.534 7958 11286 W ContextImpl: Calling a method in the system process without a qualified user: android.app.ContextImpl.sendBroadcast:1162 com.android.server.notification.sec.DisplayToast.sendIntentForToastDumpLog:156 com.android.server.notification.sec.DisplayToast.outFile:106 com.android.server.notification.sec.DisplayToast.out:62 com.android.server.notification.NotificationManagerService$12.enqueueToastForDex:3520

...

10-09 12:58:21.317 3646 4225 E BufferQueueProducer: [Toast$_9553#0](id:e3e00000cd3,api:0,p:-1,c:3646) disconnect: not connected (req=1)
10-09 12:58:21.317 9553 9847 W libEGL : EGLNativeWindowType 0xcc6e6408 disconnect failed
10-09 12:58:21.338 7958 11286 W NotificationService: Toast already killed. pkg=com.sec.android.app.launcher token=android.os.BinderProxy@f4f08f9
10-09 12:58:22.568 9943 9943 E IpcDispatcher<0>: SecChannelProxy getService/setCallback: java.util.NoSuchElementException
10-09 12:58:22.823 7958 7997 W WindowManager: Unable to start animation, surface is null or no children.

It seems strange that the line CoverManager: getCoverState : This device is not supported cover exists in the first place. There is a cover on the Tab A, but I have no idea if this is in relation to that. I am at a complete loss. HELP!!!