Battery Optimization Settings
Why This Matters
Android aggressively kills background apps to save battery. SIMtrix Bridge must run continuously in the background to receive call and SMS commands from Bitrix24 in real-time. If Android kills the app, you will miss incoming commands until you manually reopen it. Properly configuring battery optimization is the single most important step for reliable operation.
Samsung (One UI)
Go to Settings > Apps > SIMtrix Bridge > Battery > Unrestricted. Also: Settings > Battery and device care > Battery > Background usage limits > Never sleeping apps > Add SIMtrix Bridge. On older Samsung devices: Settings > Device care > Battery > App power management > Sleeping apps > Remove SIMtrix Bridge from the list.
Xiaomi / Redmi / POCO (MIUI / HyperOS)
Go to Settings > Apps > Manage apps > SIMtrix Bridge > Battery saver > No restrictions. Also: Settings > Apps > Manage apps > SIMtrix Bridge > Autostart > Enable. In Security app: Battery > App battery saver > SIMtrix Bridge > No restrictions. Lock the app in the recent apps tray by swiping down on its card.
Huawei / Honor (EMUI)
Go to Settings > Apps > Apps > SIMtrix Bridge > Battery > Enable Launch manually. Turn off all three toggles: Auto-launch, Secondary launch, Run in background — then manually enable them. Also: Settings > Battery > App launch > SIMtrix Bridge > Manage manually > Enable all toggles.
OnePlus (OxygenOS)
Go to Settings > Apps > App management > SIMtrix Bridge > Battery optimization > Don't optimize. Also: Settings > Battery > Battery optimization > SIMtrix Bridge > Don't optimize. Lock the app in the recent apps list.
Google Pixel (Stock Android)
Go to Settings > Apps > SIMtrix Bridge > Battery > Unrestricted. This is usually sufficient on Pixel devices as stock Android is less aggressive with battery optimization.
Oppo / Realme (ColorOS)
Go to Settings > Battery > More battery settings > Optimize battery use > SIMtrix Bridge > Don't optimize. Also: Settings > App management > SIMtrix Bridge > Auto-launch > Allow. Enable "Allow background activity" and "Allow auto-launch".
General Tip
After configuring battery optimization, restart the SIMtrix Bridge app. Monitor the connection status indicator for the next hour to confirm it stays green. If the app still gets killed, visit dontkillmyapp.com for additional manufacturer-specific steps.