OPPO/Realme Android 10.x Guide

These Settings must be properly configured to keep Mobile Tracker Free working.

Info: A password may be required to access the application settings. If you have not changed, the default password is *1234*. More information about the application password here.

• Settings => SIM Card & Cellular Data => Data Usage => Network Permissions => « Wi-Fi » => Select 'Wi-Fi & Cellular Data'
• Settings => SIM Card & Cellular Data => Data Usage => Data Saving => Turn OFF
• Settings => Privacy => App Permissions => Apps => « Wi-Fi » => Allow All
• Settings => Battery => Power Saving Mode => Turn OFF
• Settings => Battery => Smart Power Saver => Turn OFF
• Settings => Battery => Power saver options => Sleep Standby Optimization => Turn OFF
• Settings => App Management => App List => « Wi-Fi » => Data Usage Status => Disable Cellular Data & Disable Wi-Fi => Turn OFF
• Settings => App Management => App List => « Wi-Fi » => Data Usage Status => Background data => Turn ON
• Settings => App Management => App List => « Wi-Fi » => Power Saver => Run in Background => Turn ON
• Settings => App Management => App List => « Wi-Fi » => Permissions => Allow All
• Settings => App Management => App List => « Wi-Fi » => Auto Startup => Turn ON
• Settings => App Management => App List => « Wi-Fi » => Floating Windows => Turn ON

Be careful, with ColorOS 7 or Realme UI 1 :

• During an audio recording, the notification bar will blink red to warn you that a recording is in progress.

It is not possible to hide this, it is a security of the system.