[Connection] Oppo Devices - How to keep Biz Daemon running in the background?

1. Set Wi-Fi as Never Sleep

Settings > WLAN > Advanced or Advanced Settings > Keep WLAN connection in sleep mode, click enter to set Wi-Fi never sleep

(For ColorOS 3.0 or above: Wi-Fi is set as Never Sleep by default).

2. Battery Management

Open Settings > Battery 

• Turn off Power Saving Mode, Smart Power Saver and Super Power Saving Mode (Available on ColorOS 5.2 and above)
• More battery settings (Available on ColorOS 11.1 and above)
  • Disable Sleep standby optimization
  • Optimize battery use: set Don't optimize for Biz Daemon
• Custom Power Saver > Select Biz Daemon> Select Allow Background Running
  • ColorOS 5.2 and below: Disable Background Freeze & Abnormal Apps Optimization & Doze in Energy Saver
• Smart power-saving scenarios > Turn off Sleeping Mode
• App quick-freeze > Select Biz Daemon > Turn off Auto freeze

3. Allow Biz Daemon to Startup

• ColorOS 11.1 and above: Settings > App Management > Enable Auto-launch apps for Biz Daemon
• ColorOS 7 and above: Settings > App Management > Select Biz Daemon > Enable Startup
• ColorOS 3.0 - 6.1.2: Phone Manager > Privacy Permissions > Startup Manager > Enable Biz Daemon

4. Allow background activity for Biz Daemon (Available on ColorOS 11.1 and above)

Open Settings > App Management > App list > Find Biz Daemon > Battery usage 

• Allow background activity
• Allow auto-launch for privacy permissions

5. Lock Biz Daemon in the background

Press the Menu button > tap on the 3-dots menu on Biz Daemon > Select Lock and you see a lock icon at the left upper corner.

For some devices, slide down the Biz Daemon interface until you see a lock icon at the left upper corner.

6. Developer Options

If Developer options are available, please refer to the following:

Go to Settings > Developer options > Background process limit > tap Standard limit