If your mobile internet feels slow even with full network bars, you're not alone. Most “network booster” apps don’t actually boost anything — the real improvements come from modem-level adjustments already built into Android.
Below are powerful, safe, and tested 2025 tricks to boost your 4G/5G speeds with no app required.
✅ 1. Set the Correct Preferred Network Type
Many phones stay on “Auto” mode, which sometimes forces weaker bands.
Try this instead:
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Go to Settings → Network & Internet → SIM → Preferred Network Type
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Select 5G only (if coverage is strong)
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Or 4G LTE only (for fastest stable speed)
This prevents the phone from switching constantly between weak and strong signals.
Related:
If your phone struggles to load certain apps, check this guide:
👉 How to Fix Mobile Data That Works Only on Certain Apps
✅ 2. Refresh Your Radio Network (Android 13–15 Hidden Tool)
This trick forces your phone to reconnect to the strongest tower.
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Dial *#*#4636#*#*
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Tap Phone Information
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Toggle Mobile Radio Power OFF → ON
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Restart your phone
Your modem gets a fresh registration with your carrier.
✅ 3. Clear Outdated Carrier Settings
Old carrier configs can slow down 4G/5G performance.
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Go to Settings → Apps → Carrier Services
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Tap Storage & Cache → Clear Storage
This reloads updated carrier configurations automatically.
✅ 4. Turn Off 5G If Your Area Has Weak Coverage
Weak 5G is slower than stable 4G.
If your 5G constantly drops to 1–2 bars:
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Switch to 4G LTE only for instant improvement.
Related:
👉 Why Your Phone Keeps Dropping WiFi Even With Strong Signal
✅ 5. Change to Fast Private DNS
Slow DNS = slow browsing, even with fast network.
Set your DNS to:
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dns.google
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1dot1dot1dot1.cloudflare-dns.com
Go to:
Settings → Network → Private DNS → Private DNS Provider Hostname
✅ 6. Disable Background Data for Heavy Apps
Some apps silently consume your data in the background.
Disable for:
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TikTok
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YouTube
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Instagram
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Play Store auto-updates
Path:
Settings → Apps → Choose App → Mobile Data → Disable Background Data
This prevents network congestion.
Related:
👉 How to Stop Background Apps From Secretly Using Data & Battery
✅ 7. Clean Your SIM Card & Tray
Dust or moisture can weaken signal contact.
Remove SIM → Wipe gently → Reinsert.
✅ 8. Switch SIM Slots
Dual-SIM phones have a primary high-speed slot.
Move SIM from Slot 2 → Slot 1 for better speed.
Related:
👉 How to Improve Your Phone’s RAM Performance Without Apps
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