Notification troubleshooting (for android App)

Notification troubleshooting

Notification receiving problem

In this page explain why and how to fix the problem by brand Android device for some user who can not receive notification after install
My Appointment Register (Android App)

In general

Android OS is an open source System, many device manufacturers have modified the Android operating system for their own reasons, However those modifications in ways that interfere with notification delivery. Below is a list of affected manufacturers and devices we've seen here , along with the steps users must take to fix the problem:


Huawei devices run a modified version of Android OS called EMUI. By default, EMUI versions earlier than 4.1 automatically kill background apps every time the device's screen is off, unless they are marked is a Protected App in the device's Battery Management page in Advanced Settings. This causes notifications to not be received by apps that are not on the Protected Apps list. Apart from interfering with notifications, it also causes frequently used apps to start slower, and can cause you to lose your place in games and other apps when the device is locked.

Fortunately Huawei resolved this in EMUI 4.1 and newer.

Manually add each app you want reliable notification delivery from as a "Protected App" in the EMUI settings.


Some Sony Xperia devices have a Sony-specific "Stamina Mode". Like Huawei's "Protected Apps", Stamina Mode causes the device to forcefully close background processes and network connections when the device's screen is off. Fortunately it appears that Sony has removed Stamina Mode for their new devices that run Android 6 and newer.


Manually add each app you want reliable notification delivery from to a list in the device's power management settings.


Asus Android devices have an "Auto-Start Manager" that by default prevents applications from being woken up to process incoming notifications unless they are allowed in the Auto-Start Manager application.


Manually allow each app you want reliable notification delivery from to the Auto-Start Manager application.



Please note that I'm not 100% sure all five steps are required tried steps 1, 2, 3 first, if notifications didn't work. tried 1,2, 3, 4. If It wasn't work added step 5

  1. Settings->SYSTEM&DEVICE->BATTERY SAVER ->Choose apps ->find My Appointment Register->Select No restrictions
  2. Go to settings --> permissions --> autostart. From there, pick the apps you want to receive notifications, and toggle the switch to turn it on.
  3. Go to settings --> app notifications --> pick the apps you want to receive notifications, then turn the toggle for "Priority" on.
  4. Lock the app in the "recent apps"/ "app overview" plane. Do so by first opening the apps, then press the "recent apps/overview button" (that's the square button on stock Android, or the button with three horizontal lines on the Mi Mix). From there, find the app you want to receive notifications, pull down on it to "lock it", so it never gets cleared.
  5. This last step requires Developer Options privileges. To enable that, go to settings (man... I'm getting tired of typing "go to settings" ...) --> about phone --> tap on MIUI version tab like eight times. You should then get a little message saying "you are now a developer." Then head back out to settings, go to developer option, scroll to nearly the bottom, find "memory optimization," and turn it off. Again, maybe step 5 is all you need. I know my Whatsapp and Gmail notifications didn't start coming through in real time until I completed that step.


Oppo devices will close apps in the background or when the screen is off, and prevent those apps from receiving notifications.


Manually disable power savings on each app you want reliable notification delivery from within the "Security Center -> Data Saving" menu.


Unfortunately Samsung recently joined this list by changing the default notification behavior of Android OS in a particularly problematic way. On new Samsung devices, the device will not show notifications from an app that has not been opened recently unless it is manually white-listed deep in the device's settings.


Manually disable battery usage optimization for each app you want reliable notification delivery from.Guide

Last updated: 08/07/2019