Samsung Galaxy J2 (2015)

Samsung
unofficial

Notifications, background tasks, automatic synchronization or alarms do not work correctly for “Threema” on your Samsung Galaxy J2 (2015)?

  1. Open the “Smart Manager” on your device.
  2. At the top left, choose “Battery”.
  3. In the “App optimization” section, choose “Detail”.
  4. At the top, if the switch is turned off, i.e. with its knob or handle at the left, there’s nothing left for you to do. Otherwise, proceed with the next step.
  5. Find “Threema” in the list of apps.
  6. Tap on “Threema”.
  7. Select “Turned off”.
  8. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. Open the “Settings” of your device.
  2. Choose “Sounds and notifications”.
  3. At the bottom, tap on “App notifications”.
  4. Find “Threema” in the list of apps.
  5. Tap on “Threema”.
  6. Next to “Block notifications”, make sure the switch is turned off, i.e. with its knob or handle at the left.
  7. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. Open the “Settings” of your device.
  2. Choose “Applications”.
  3. Tap on “Application manager”.
  4. Find “Threema” in the list of apps.
  5. Tap on “Threema”.
  6. At the top, next to “Show notifications”, make sure there’s a checkmark in the checkbox.
  7. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. Open the “Smart Manager” on your device.
  2. At the top left, choose “Battery”.
  3. In the “App optimization” section, choose “Detail”.
  4. At the top right, choose “More”.
  5. If it says “Block notifications”, there’s nothing left for you to do. Otherwise, proceed with the next step.
  6. Tap on “Show notifications”.
  7. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. Open the “Settings” of your device.
  2. Choose “Sounds and notifications”.
  3. At the bottom, tap on “App notifications”.
  4. Find “Threema” in the list of apps.
  5. Tap on “Threema”.
  6. Next to “Set as priority”, make sure the switch is turned on, i.e. with its knob or handle at the right.
  7. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. Open the “Smart Manager” on your device.
  2. At the top left, choose “Battery”.
  3. In the “Power saving” section, choose “Power saving mode”.
  4. At the top, make sure the switch is turned off, i.e. with its knob or handle at the left.
  5. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. Open the “Settings” of your device.
  2. Choose “Accounts”.
  3. At the top right, tap on “More”.
  4. If it says “Turn off auto sync”, there’s nothing left for you to do. Otherwise, proceed with the next step.
  5. Tap on “Turn on auto sync”.
  6. Tap on “OK”.
  7. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. Swipe down from the status bar to show notifications and quick settings.
  2. Find the quick settings (where you can also turn on and off Wi-Fi, Bluetooth, etc.).
  3. Make sure that “Sync” is turned on (colored).
  4. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. Open the “Settings” of your device.
  2. Choose “Battery”.
  3. In the “Power saving” section, choose “Power saving mode”.
  4. At the top, make sure that the switch is turned off, i.e. with its knob or handle at the left.
  5. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. Open the “Smart Manager” on your device.
  2. At the top left, choose “Battery”.
  3. In the “Power saving” section, choose “Ultra power saving mode”.
  4. At the top, make sure the switch is turned off, i.e. with its knob or handle at the left.
  5. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. Open the “Settings” of your device.
  2. Choose “Battery”.
  3. In the “Power saving” section, choose “Ultra power saving mode”.
  4. At the top, make sure that the switch is turned off, i.e. with its knob or handle at the left.
  5. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. Swipe down from the status bar to show notifications and quick settings.
  2. Find the quick settings (where you can also turn on and off Wi-Fi, Bluetooth, etc.).
  3. Make sure that “U. power saving” is turned off (gray).
  4. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. Open the “Settings” of your device.
  2. Choose “Wi-Fi”.
  3. At the top right, tap on “More”.
  4. Tap on “Keep Wi-Fi on during sleep”.
  5. Select “Always”.
  6. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. Swipe down from the status bar to show notifications and quick settings.
  2. Find the quick settings (where you can also turn on and off Wi-Fi, Bluetooth, etc.).
  3. Make sure that “Power saving” is turned off (gray).
  4. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. There are many apps on the app store which claim to boost performance, free up space, save battery, or optimize the RAM of your device. However, these apps interfere with other apps, like “Threema”, and prevent them from working correctly.
  2. If you have any app like “Clean Master”, “Security Master”, “Task Manager”, “Phone Cleaner”, “Super Cleaner”, “Power Clean”, “DU Cleaner”, “DU Speed Booster”, “CCleaner”, “AVG Cleaner”, “Avast Cleanup” or “Norton Clean”, check that it doesn’t block or terminate “Threema”.
  3. If unsure, consider uninstalling the app claiming to “clean” or “boost” your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?

  1. If you’ve made any changes based on the advice above and you’ve adjusted the settings of your device, proceed with the next step. Otherwise, there’s nothing left for you to do.
  2. Restart your device once. You can either choose the “Restart” option directly, if available, or turn off your device, wait a few seconds, and then turn it on again manually.
  3. Open “Threema” once on your device – by tapping on “Threema” on your home screen or in the list of all apps.
  4. Leave by pressing ○ (“Home”) at the bottom of your device.

Have you been able to follow these steps on your Samsung Galaxy J2 (2015)?