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  • All-in-One Toolbox
    • Getting started
      • What is 3C All-in-One Toolbox?
      • Features Comparison
      • Permissions requested
      • Public libraries being used
      • Why was 3C All-in-One Toolbox created?
    • Main (expert) screen
    • Online Help
      • Shortcuts
      • App Manager
        • App List
        • App Backups
        • One-Click
        • App Startup/Events
        • App Statistics
        • App Permissions
      • Battery Manager
        • Estimates
        • Battery Comparison
        • Battery Calibration
        • Time Estimates
        • History Graphics
        • History Text
        • Battery Status
        • Battery Use Times
        • Battery Information popup
        • Statistics
      • CPU Manager
        • Summary
        • Graphics
        • CPU Controls
        • GPU Controls
        • CPU Voltage
        • CPU Frequency Times
        • CPU Governors
        • MPDecision
        • CPU Thermals
      • Device manager
        • Summary
        • One-click
        • Scheduler
        • Profiler
        • Watcher
      • Network manager
        • Network summary
        • Running
        • Details
        • Graphics
        • VPN Tethering
        • Android Firewall
        • DNS Changer
        • TCP Congestion Algorithm
        • WiFi MAC Editor
        • WiFi prioritization
      • ROM Manager
        • Build.prop Editor
        • Font changer
          • Font downloader
        • Boot animation changer
      • SQLite Manager
        • Tables
          • Rows
            • Values
          • Manual SQL
      • System Manager
        • Memory Information
        • System
        • Storage
        • Cache Size
        • Entropy
        • File System Triming
        • Kernel SysCtl Tweaks
        • Miscellaneous
        • Gamma controls
        • Sound controls
      • Task Manager
        • Process Details
        • Kill / force-stop
      • Task Recorder
        • Analyzer
      • Usage Manager
        • Usage
        • Limits
      • File Explorer
      • Terminal Emulator
        • Scripting
          • Script Editor
      • Log Reader
    • Settings
      • UI Settings
        • General UI settings
        • UI theme settings
        • UI main screen settings
        • Task manager UI settings
          • Force-stop settings
            • Force-stop included apps
        • Network manager UI settings
        • File manager UI settings
        • Log reader UI settings
      • Alarms and Notification
      • Widgets settings
        • Widget look’n’feel settings
          • Widget colors settings
        • Widget content settings
      • Applications settings
        • Applications active tweaks
      • Battery settings
        • Battery monitoring settings
        • Battery calibration settings
        • Battery markers settings
        • Battery active tweaks settings
      • Notifications settings
        • Icon Package selection
        • Download icon packages
      • Recorder settings
        • Items to record
      • Terminal Emulator Settings
      • Line overlay settings
      • Overlay widget settings
      • Line indicators settings
      • Active tweaks
      • Help and support
      • Translation
    • Controls Popup
    • CPU Control popup
    • Download 3C Toolbox icon packages
    • Download Battery Monitor Widget icon packages
  • Companion
    • Install from mobile
    • Install from PC / Mac / Linux
  • Sensitive Backups
  • Battery Watch
    • Watchers
    • Statitics
    • Settings
      • General
      • Theme
      • Notification
  • Other Apps
    • Battery Monitor Widget
      • Efficient Monitoring and Saving CPU time
      • Graphics
      • BMW Settings
        • Main Screen
        • Notifications
        • Monitoring
        • Display
      • Widgets
      • Calibration – Measuring total capacity
    • Multi Toggle Widget
  • Blog
  • Privacy Policy
  • Home
  • All-in-One Toolbox
    • Getting started
      • What is 3C All-in-One Toolbox?
      • Features Comparison
      • Permissions requested
      • Public libraries being used
      • Why was 3C All-in-One Toolbox created?
    • Main (expert) screen
    • Online Help
      • Shortcuts
      • App Manager
        • App List
        • App Backups
        • One-Click
        • App Startup/Events
        • App Statistics
        • App Permissions
      • Battery Manager
        • Estimates
        • Battery Comparison
        • Battery Calibration
        • Time Estimates
        • History Graphics
        • History Text
        • Battery Status
        • Battery Use Times
        • Battery Information popup
        • Statistics
      • CPU Manager
        • Summary
        • Graphics
        • CPU Controls
        • GPU Controls
        • CPU Voltage
        • CPU Frequency Times
        • CPU Governors
        • MPDecision
        • CPU Thermals
      • Device manager
        • Summary
        • One-click
        • Scheduler
        • Profiler
        • Watcher
      • Network manager
        • Network summary
        • Running
        • Details
        • Graphics
        • VPN Tethering
        • Android Firewall
        • DNS Changer
        • TCP Congestion Algorithm
        • WiFi MAC Editor
        • WiFi prioritization
      • ROM Manager
        • Build.prop Editor
        • Font changer
          • Font downloader
        • Boot animation changer
      • SQLite Manager
        • Tables
          • Rows
            • Values
          • Manual SQL
      • System Manager
        • Memory Information
        • System
        • Storage
        • Cache Size
        • Entropy
        • File System Triming
        • Kernel SysCtl Tweaks
        • Miscellaneous
        • Gamma controls
        • Sound controls
      • Task Manager
        • Process Details
        • Kill / force-stop
      • Task Recorder
        • Analyzer
      • Usage Manager
        • Usage
        • Limits
      • File Explorer
      • Terminal Emulator
        • Scripting
          • Script Editor
      • Log Reader
    • Settings
      • UI Settings
        • General UI settings
        • UI theme settings
        • UI main screen settings
        • Task manager UI settings
          • Force-stop settings
            • Force-stop included apps
        • Network manager UI settings
        • File manager UI settings
        • Log reader UI settings
      • Alarms and Notification
      • Widgets settings
        • Widget look’n’feel settings
          • Widget colors settings
        • Widget content settings
      • Applications settings
        • Applications active tweaks
      • Battery settings
        • Battery monitoring settings
        • Battery calibration settings
        • Battery markers settings
        • Battery active tweaks settings
      • Notifications settings
        • Icon Package selection
        • Download icon packages
      • Recorder settings
        • Items to record
      • Terminal Emulator Settings
      • Line overlay settings
      • Overlay widget settings
      • Line indicators settings
      • Active tweaks
      • Help and support
      • Translation
    • Controls Popup
    • CPU Control popup
    • Download 3C Toolbox icon packages
    • Download Battery Monitor Widget icon packages
  • Companion
    • Install from mobile
    • Install from PC / Mac / Linux
  • Sensitive Backups
  • Battery Watch
    • Watchers
    • Statitics
    • Settings
      • General
      • Theme
      • Notification
  • Other Apps
    • Battery Monitor Widget
      • Efficient Monitoring and Saving CPU time
      • Graphics
      • BMW Settings
        • Main Screen
        • Notifications
        • Monitoring
        • Display
      • Widgets
      • Calibration – Measuring total capacity
    • Multi Toggle Widget
  • Blog
  • Privacy Policy

Posts by 3C

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  • Page 3
About 3C
IT professionnal for the past 30 years, developer during my free time, I developped my first Android tool in 2009, a simple Battery Monitoring app. After 15+ years it has led me to develop a complete Android toolbox, the most complete you can find on Play Store.
Posted inInformation News

Battery statistics incomplete

Posted by By 3C 22 March 2025
If you use 3C Battery Manager, you might notice that in version 4.8.7b and above,…
Read More
Posted inInformation

Stopping app no longer working on non-rooted devices

Posted by By 3C 22 March 2025
Stopping apps on non-rooted devices requires enabling accessibility service. It may happen that the accessibility…
Read More
Posted inInformation

Manually granting extra permissions

Posted by By 3C 22 March 2025
Since Android 5.0, it's possible to grant extra permissions to apps, that in turn enable…
Read More
Posted inInformation

Why “3C Helper” is installed into /system

Posted by By 3C 22 March 2025
This app does not use root privileges however 3C All-in-One Toolbox requires root to be able…
Read More
Posted inInformation

Fix app’s data permissions

Posted by By 3C 22 March 2025
This feature available in 3C All-in-One Toolbox and 3C App Manager allows to reset data…
Read More
Posted inInformation

Cleaning system apps

Posted by By 3C 22 March 2025
Note that this feature is not available on read-only system partition, which is most if…
Read More
Posted inInformation

3C Privacy Policy

Posted by By 3C 15 March 2025
None of your data will ever be collected or disclosed by any 3C applications. Read…
Read More
Posted inUncategorized

WiFi MAC Editor

Posted by By 3C 3 April 2024
In this tab you can edit your factory MAC address, given your device is rooted.…
Read More
Posted inInformation

MIUI 12 Notification issues

Posted by By 3C 31 July 2021
In latest version of MIUI 12 to date, users have discovered that the OS uses…
Read More
Posted inUncategorized

WiFi SSID Information

Posted by By 3C 29 June 2021
Since Android 11, thanks to Google, my apps can no longer access WiFi SSID information…
Read More

Posts pagination

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Latest news

  • Voltage not available?
  • Incorrect % readings
  • How estimated mA is calculated?
  • Should you use a task killer?
  • How does calibration works?

Latest comments

  1. 3C on Battery Optimizations29 March 2025
  2. 3C on Missing history or background service stopped29 March 2025

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