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Tech Tutorials | App Reviews & Android Fixes | Fintech Shield Blog
Welcome to the Fintech Shield Blog | Your go-to hub for insightful Tech Tutorials, Unbiased App Reviews, Android Solutions, Windows Solutions and Digital innovation tips. Whether you're a curious user or a seasoned tech pro, we’ve got something valuable for you. Stay ahead in the digital era with our expert-driven guides and updates.
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Best File Managers for Android 2025 | Top 7 Apps for Speed & Security
Managing files on Android doesn’t have to be a hassle. Explore our expert-picked list of the 7 best file managers in 2025 to organize, secure, and speed up your device.
Kalyan Bhattacharjee
5 days ago5 min read


Best Game Booster Settings for BGMI, CODM, Free Fire in 2025
Want smoother gameplay and higher FPS in BGMI, CODM, and Free Fire? This 2025 guide reveals the best game booster settings to reduce lag, optimize performance, and maximize battery efficiency for a seamless mobile gaming experience.
Kalyan Bhattacharjee
Aug 303 min read


Why Your Custom ROM Keeps Bootlooping - And How to Fix It
Custom ROMs offer incredible flexibility and features for Android users, but they can also lead to frustrating bootloops if things go wrong. In this blog, we dive into the most common causes of bootloop issues—like incompatible firmware, faulty GApps packages, or incorrect flashing steps, and offer proven solutions to get your device running again. Whether you're a seasoned modder or a curious beginner, this guide will help you troubleshoot and fix bootloop problems with ease
Kalyan Bhattacharjee
Aug 73 min read


Best SMS Backup & Restore Apps for Android (2025 Guide)
Need to back up or restore your SMS messages on Android? This 2025 guide lists the best apps - from no-root tools to advanced solutions for power users.
Kalyan Bhattacharjee
Jul 23 min read


Introduction to Android Kernel Development for Beginners
Curious about Android kernel development? This guide breaks down the basics - how the kernel works, how to build it, and where to start as a beginner.
Kalyan Bhattacharjee
Jul 23 min read


Magisk Troubleshooting Guide 2025: Fix Bootloops, Conflicts & More
Facing issues with Magisk in 2025? From bootloops to module conflicts, this troubleshooting guide covers every common error and shows you how to fix them step-by-step.
Kalyan Bhattacharjee
Jul 23 min read


5 Best Android Launchers in 2025 That Make Your Phone Feel Brand New
Looking to give your Android phone a total makeover? These 5 launchers tested in 2025 will transform your device with smooth performance, sleek design, and powerful customization—no root needed!
Kalyan Bhattacharjee
Jun 223 min read


Top 10 Magisk Modules for Rooted Android Phones (2025 Edition)
Unlock the full potential of your rooted Android device with these 10 mind-blowing Magisk modules in 2025. From boosting audio quality to fine-tuning battery performance and UI customization, this handpicked list reveals the hidden power tools every Android enthusiast needs. Whether you're a power user or just getting started with Magisk, these modules will take your Android experience to the next level.
Kalyan Bhattacharjee
Jun 193 min read


Best Custom ROMs for Xiaomi & Poco Devices in 2025 [Top 5 Picks]
MIUI slowing you down? These 5 custom ROMs will breathe new life into your Xiaomi or Poco device in 2025—clean UI, better battery, and pure performance.
Kalyan Bhattacharjee
Jun 174 min read


5 Best Android Cooling Apps to Stop Overheating (2025 Tested List)
Overheating Android phone? We tested the top cooling apps in summer 2025 to find which ones truly lower your device’s temperature. From Cooling Master to Phone Cooler, discover apps that actually work!
Kalyan Bhattacharjee
Jun 113 min read


Best Battery Saver Apps for Android (2025 Tested List)
Looking to stop fast battery drain on your Android phone? These top 5 battery saver apps of 2025 were tested for real-world performance—and they actually work.
Kalyan Bhattacharjee
Jun 83 min read


What Is Android GSI ROM? A Simple Guide for Everyone
Confused by the term GSI ROM? Here’s a non-techy breakdown of what Android GSI ROM is, why it exists, and how it lets you test new Android versions early.
Kalyan Bhattacharjee
Jun 53 min read


Best Android Cleaner Apps That Actually Work (2025 Tested List)
Most Android cleaner apps promise miracles but deliver ads. In 2025, we tested dozens and found five that actually improve speed, clean junk, and free up space. From Files by Google to SD Maid, here’s what works—and what doesn’t.
Kalyan Bhattacharjee
Jun 13 min read


How to Safely Install a Custom ROM on Android (2025 Guide)
Thinking about giving your Android a fresh new look or improved performance? This guide walks you through how to safely install a custom ROM in 2025—covering everything from backups to flashing without bricking your phone.
Kalyan Bhattacharjee
Jun 14 min read


Magisk vs SuperSU: Best Root Method for Android Explained
Wondering which root method is right for your Android device in 2025? Dive into this guide comparing Magisk and SuperSU—covering features, pros and cons, and which one suits your needs best.
Kalyan Bhattacharjee
May 312 min read


Top Lightweight ROMs for Old Android Phones (2025)
Got an old Android phone collecting dust? Don’t toss it yet. With the right lightweight custom ROM, you can breathe new life into it—boosting performance, battery, and usability. Here are the best ROMs that make your aging device feel brand new.
Kalyan Bhattacharjee
May 243 min read


How to Tell If Your Phone Is Being Tracked (And Stop It)
Is someone secretly tracking your phone? Learn how to spot the signs - like sudden battery drain or weird app activity—and take back control with simple, effective steps to protect your privacy and stop unwanted tracking.
Kalyan Bhattacharjee
May 233 min read


Make Android Phone Faster: 10 Simple Tweaks That Work
Tired of your laggy Android? Discover simple and effective tips to make your Android phone faster - no technical expertise required!
Kalyan Bhattacharjee
May 163 min read


Best Android Launchers for Speed and Aesthetics (Latest Edition)
Explore the best Android launchers of 2025, handpicked for blazing speed and stunning aesthetics. From minimalist to feature-rich, find your perfect match.
Kalyan Bhattacharjee
May 133 min read


Hidden Android Features You Didn’t Know About (2025 Edition)
Think you know your Android phone? Think again. This 2025 guide uncovers hidden features and smart tools most users miss—like advanced gestures, privacy options, and productivity boosters. Give your Android a real upgrade today.
Kalyan Bhattacharjee
May 113 min read
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