- Follow steps to troubleshoot for your issue.
- Android phone's may have manufacturer specific settings that limit notifications from appearing until you open Signal. Use the following steps as guidelines to navigate through settings for your specific phone.
- Follow steps to troubleshoot for your OS.
Asus
- Android phone Settings > Power management > Auto-start manager > DOWNLOADED page > select 'Allow' for Signal.
HTC
- Boost+ app > Optimize background apps > Signal > select 'Off.'
Huawei
- Android phone Settings > Apps > Apps > Signal > Power Usage Details > App Launch > Set to Manage Manually and enable these options: Auto-Launch, Secondary Launch, and Run in Background.
- Phone Manager app > Battery manager (or Energy Saver) > Protected apps > Enable Signal.
- Android phone Settings > Advanced Settings > Battery manager (or Energy Saver) > Protected apps > Enable Signal.
- Android phone Settings > 'All' tab > Protected apps > Enable Signal.
- Phone Manager App > Protected apps > Enable Signal.
- Android phone Settings > Apps > Advanced/Special Access > Ignore battery optimizations > All Apps (drop down) > Enable Signal.
- Android phone settings > Battery > Launch > Signal.
- Android phone settings > Apps > Signal > Data usage > Background Data > Enable.
- Android phone Settings > Notification panel & status bar > Notification center, find Signal and activate Allow Notifications and Priority Display.
Lenovo
- Android phone Settings > Power manager > Background app management > add Signal to the unrestricted list or allow Signal to auto-start.
Nokia
- Android phone settings > Battery > Background activity manager > ensure that the switch is disabled for Signal.
OnePlus
- Android phone Settings > Apps > Gear icon > Apps Auto-launch > Enable Signal start-up in the background.
- Android phone Settings > Battery > Menu > Aggressive Doze & App Hibernation > Disable this mode or prevent Signal from being limited in this mode.
- Android phone Settings > Apps > Menu > Auto Run > Disable this mode or prevent Signal from being limited in this mode.
Oppo
- Apps > Security center > Privacy permissions > Auto-run management (or Startup manager) > Enable Signal.
- Android phone Settings > Application management > Running tab > Enable Signal.
Samsung
- Android phone Settings > Apps > Signal > Mobile data > Allow background data usage
- Android phone Settings > Security > Auto-start management > Enable Signal.
- Android phone Settings > Wi-Fi > Advanced > Always keep Wi-Fi on during sleep.
- Android phone Settings > Device Maintenance > Battery > MENU > App Power Monitor > Disable or selectively choose apps to sleep from Settings > Device Maintenance > Battery. Make sure to exclude Signal from the sleep list.
- Android phone Settings > Device Maintenance > Battery > Power saving mode > Disable ot adjust to MID.
- Android phone Settings > Battery > Detail > Signal > Turn off.
- Apps drawer > Smart manager > Battery > Detail > Signal > Turn off.
- Android phone Settings > Battery > Battery usage > MENU > Optimize battery usage > select 'All apps' > Disable Signal.
- Android phone Settings > Battery > Unmonitored apps > Add apps > Signal > Done > Restart your phone.
- Samsung 8: Android phone Settings > Apps > Menu > Special Access > Optimize battery usage > select the drop down which likely states ‘apps not optimized’ and switch to ‘all apps’ > find Signal and tap on the switch to turn it off.
Sony
- Android phone Settings > Storage & memory > turn off the 'Smart cleaner' option or continue to tap the three dots at the top right > Advanced > add Signal to the whitelist.
- Android phone Settings > Power management > Tap STAMINA mode > Apps active in standby > add Signal to the whitelist.
Vivo
- Apps drawer > iManager > App manager > Autostart manager > allow Signal to auto-start in the background.
Xiaomi / MIUI
- Apps drawer > Security app > Permissions > tap Autostart > Enable Signal.
- Android phone Settings > Services > Security > Permissions > Autostart > Enable Signal.
- Android phone Settings > Additional Settings > Battery and Performance > Manage apps' battery usage > turn 'Power saving modes' off > open the Security app > navigate to Permissions > add Signal to Autostart > invoke Task Manager > find Signal > drag it downwards until the padlock icon appears.
- Android phone Security app > Settings > Data usage > Allow background data.