Vivo Y77 Problems 100% FIX! Touch Lag, Boot Loop, Camera Focus, WiFi Drop | 15 Steps

Vivo Y77 Problems 100% FIX!

Touch Calibration, Boot Loop Fix, Camera Focus, WiFi Reset | 15 Steps + 1 REAL Photo

By Nadeem Gulaab

15 Expert Steps

4 Major Issues

100% Working Fixes

Funtouch OS Optimized

👆

Touch Calibration

Accurate touch response

🔄

Boot Loop Fix

Normal startup

📸

Camera Focus

Sharp, clear photos

📶

WiFi Reset

Stable connection

Real Vivo Y77 device - Optimized for reliable performance

Touch Calibration Solution

Step 1: Basic Touch Test

Dial *#*#6484#*#* to enter Vivo hardware test mode
Select "Touch screen test"
Draw patterns across entire screen
Check for dead zones or unresponsive areas
Note any calibration issues

Step 2: Touch Sensitivity Settings

Go to Settings > Display & brightness
Enable "High touch sensitivity"
Disable "Glove mode" if enabled
Adjust screen timeout to 30 seconds for testing
Remove screen protector if too thick

Step 3: Advanced Calibration

Enable Developer options (tap Build number 7 times)
Enable "Pointer location" to see touch coordinates
Test touch accuracy across screen
Clean screen with microfiber cloth
Update touch firmware via system updates

Pro Tip: Use original Vivo screen protectors for best touch sensitivity.

Boot Loop Fix Solution

Step 4: Safe Mode Diagnosis

Press and hold Power button until Vivo logo appears
When logo appears, press and hold Volume Down button
Continue holding until "Safe Mode" appears in corner
If phone boots in Safe Mode, problem is third-party app
Uninstall recently installed apps one by one

Step 5: Recovery Mode Solutions

Power off device completely
Press Volume Up + Power buttons simultaneously
Select "Wipe cache partition" from recovery menu
Reboot system and check if issue persists
If persists, try "Repair apps" option

Step 6: Factory Reset (Last Resort)

Boot into Recovery Mode (Volume Up + Power)
Select "Wipe data/factory reset"
Confirm reset and wait for completion
Select "Reboot system now"
Set up as new device

Critical: Always backup data regularly to avoid data loss during boot loop situations.

Camera Focus Solution

Step 7: Camera Settings Optimization

Clean camera lenses with microfiber cloth
Open Camera app > Settings
Enable "AI scene enhancement"
Turn on "Touch to capture"
Set photo resolution to maximum

Step 8: Focus Optimization

Tap to focus before taking photos
Enable "Tracking auto-focus" if available
Use "Pro mode" for manual focus control
Hold phone steady for 2 seconds after focusing
Ensure adequate lighting for better focus

Step 9: Camera App Maintenance

Go to Settings > Apps > Camera
Clear camera app cache and data
Update Camera app via Vivo App Store
Reset camera settings to default
Test focus in different camera modes

Result: Your camera will focus quickly and accurately on subjects.

WiFi Reset Solution

Step 10: Network Settings Reset

Go to Settings > System management > Reset
Tap "Reset network settings"
Confirm reset and restart phone
Reconnect to WiFi networks
Re-pair Bluetooth devices if needed

Step 11: WiFi Optimization

Forget problematic WiFi networks
Reconnect with correct password
Set WiFi frequency band to 2.4GHz only
Disable "Switch to mobile data automatically"
Enable "Intelligent network switching"

Step 12: Advanced Network Settings

Go to Settings > WLAN > Advanced settings
Set "Keep WLAN on during sleep" to Always
Enable "WLAN security scan"
Disable "Randomize MAC" for home networks
Update router firmware if possible

Additional Optimization Steps

Step 13: Funtouch OS Update

Go to Settings > System update
Check for Funtouch OS updates
Install latest security patches
Update all system apps via Vivo App Store
Reboot phone after updates

Step 14: System Maintenance

Run iManager optimization weekly
Clear app caches and junk files
Use "Phone cleanup" feature regularly
Monitor storage and battery health
Check for malware with Security scan

Step 15: Professional Service

Use Vivo hardware test mode for diagnostics
Contact Vivo support if issues persist
Visit authorized service center
Check warranty status
Request hardware inspection if needed

Important: For persistent boot loop issues, visit Vivo Service Center immediately.

Final Result: Your Vivo Y77 will operate smoothly with accurate touch response, normal booting, perfect camera focus, and stable WiFi connectivity!