Issue Description
The screen stays on during calls or idle periods, draining battery.
Common Causes
- Screen timeout disabled
- Proximity sensor blocked
- App preventing sleep
Step-by-Step Solution
Step 1: Check Screen Timeout
- Settings → Display → Screen timeout
- Set to 30 sec – 2 min
Step 2: Clean Proximity Sensor
- Clean area near front camera
- Remove thick screen protectors
Step 3: Disable Always-On Display
- Settings → Lock Screen
- Turn OFF Always On Display
Step 4: Boot into Safe Mode
- Identify apps keeping screen awake
Explore Further
- Sensor test apps
Prevention & Best Practices
Avoid apps with wake-lock abuse.