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Tech Tutorials - App Reviews & Android Fixes | Fintech Shield Blog
Welcome to the Fintech Shield Blog. A dedicated space for practical tech tutorials, unbiased app insights, Android and Windows fixes, and smart digital guidance. Whether you’re a curious learner or an experienced tech user, you’ll find clear, useful content designed to solve real-world problems and keep you informed in a fast-moving digital landscape.
Editor's Picks: Handpicked Guides Worth Reading
A curated selection of guides chosen for their usefulness, clarity, and real-world tech value.
Best Android Cleaner Apps That Actually Work (2026 Tested List)
Most Android cleaner apps promise miracles but deliver ads. In 2026, 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.
a few seconds ago3 min read
Top 10 Magisk Modules for Rooted Android Phones (2026 Edition)
Unlock the full potential of your rooted Android device with these 10 mind-blowing Magisk modules in 2026. 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.
Jan 23 min read
Best Android Themes That Completely Transform Your Phone
Looking to revamp your phone's look in 2025? Whether you're using a launcher or just your device’s built-in theme store, these Android themes will completely transform your UI — no root required.
Jun 26, 20254 min read
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Should You Buy a Refurbished iPhone? Pros & Cons Explained
Refurbished iPhones offer big savings, but are they worth it? This blog explores the pros, cons, and everything you need to know before buying one.
Kalyan Bhattacharjee
May 15, 20254 min read
What’s New in iOS 18: Top Features, Updates & Enhancements
Apple’s iOS 18 brings a suite of powerful upgrades - from redesigned Control Center to AI-driven Siri improvements. Whether you’re a casual user or a tech enthusiast, this guide unpacks everything you need to know about iOS 18’s new capabilities.
Kalyan Bhattacharjee
May 15, 20254 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 13, 20253 min read
How to Fix High CPU or Disk Usage in Windows
High CPU or disk usage can slow down your Windows system and impact productivity. This guide explores the reasons behind it and offers effective fixes for better performance.
Kalyan Bhattacharjee
May 12, 20254 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 11, 20253 min read
The Fall and Rise of Nokia: A Corporate Cautionary Tale
Nokia’s story is one of innovation, complacency, and resilience. From being the world’s top mobile brand to losing its crown and slowly rebuilding through telecom and Android devices. This blog explores the dramatic rise, fall, and partial revival of Nokia.
Kalyan Bhattacharjee
May 10, 20253 min read
Best Custom ROMs for Gaming on Android in 2025 [Tested & Ranked]
Looking to upgrade your Android experience? In 2025, custom ROMs are more powerful than ever. This guide breaks down the top-performing ROMs like LineageOS, Pixel Experience, and more—perfect for privacy lovers, performance seekers, and Android enthusiasts alike.
Kalyan Bhattacharjee
May 9, 20253 min read
Cloud Frameworks: AWS vs Azure vs Google Cloud (2025 Guide)
In 2025, AWS, Azure, and Google Cloud lead the cloud computing space. This blog breaks down their key features, pricing, and best use cases to help you choose the right platform. Whether you're a startup, developer, or enterprise, understanding these differences is essential for making informed decisions.
Kalyan Bhattacharjee
May 9, 20254 min read
Windows | Application Was Unable to Start Correctly (0xc000007b) Error
Facing the frustrating “Application was unable to start correctly (0xc000007b)” error on Windows? You're not alone. This common issue often stems from corrupted system files, missing DLLs, or mismatched app versions. In this guide, we break down the exact reasons behind the error and provide simple, step-by-step solutions to fix it for good—no tech expertise required.
Kalyan Bhattacharjee
May 8, 20253 min read
Battery Recycling - Process, Benefits & Why It Matters
Batteries power the modern world, but what happens when they die? This blog explores the full process of battery recycling, why it matters more than ever in 2026, and how you can play a part in building a cleaner, smarter future.
Kalyan Bhattacharjee
May 7, 20253 min read
Top Custom ROMs for Android Devices in 2025: Android 14
Looking to supercharge your Android experience in 2025? Discover the top custom ROMs that offer faster performance, better battery life, enhanced privacy, and sleek new designs. Whether you're a power user or just want a clean, bloat-free Android interface, this guide will help you pick the perfect ROM for your device.
Kalyan Bhattacharjee
May 6, 20254 min read
Why Does My PC Keep Restarting Randomly? [Solved]
Is your PC restarting on its own without warning? Don't panic. This guide breaks down the top reasons—like overheating, faulty hardware, or driver issues—and offers practical solutions to fix random restarts once and for all.
Kalyan Bhattacharjee
May 5, 20254 min read
Essential Canva Features: Tools, AI, and Design Capabilities
Canva is a powerful and user-friendly graphic design platform that helps you create professional visuals for any purpose, even without prior design experience.
Kalyan Bhattacharjee
May 4, 20253 min read
Google Docs: Full Guide to Features, Uses & Troubleshooting
Google Docs is a powerful, free word processor by Google that lets you create, edit, and collaborate on documents in real time - all in your browser.
Kalyan Bhattacharjee
May 3, 20254 min read
Top Android Settings You Should Change Right Now (2025 Update)
Speed up your Android, save battery, and protect your privacy with these must-change settings every user should know.
Kalyan Bhattacharjee
May 2, 20253 min read
Samsung’s Evolution: From Grocery Store to Global Tech Giant
Samsung started as a grocery store in 1938 and is now a global tech leader. Here’s how it made the leap from market stalls to microchips.
Kalyan Bhattacharjee
May 1, 20253 min read
Digital Frameworks Explained | Components, Benefits & Use Cases
A digital framework is a structured foundation that supports building and managing digital systems. This blog breaks down its key components and why it’s essential in today’s tech landscape.
Kalyan Bhattacharjee
May 1, 20253 min read
What is Buy Now, Pay Later (BNPL): Pros and Cons Explained
BNPL or Buy Now, Pay Later is transforming how Indians shop. From instant credit to flexible EMIs, here’s everything you need to know, plus the top BNPL apps in India.
Kalyan Bhattacharjee
Apr 30, 20254 min read
What’s New in Android 15? Top Features & Changes Explained
A closer look at Android 15’s standout features, design upgrades, and what it means for your device experience in 2025.
Kalyan Bhattacharjee
Apr 30, 20253 min read
Windows Update Stuck? Simple Fixes That Actually Work
Frustrated with a stuck Windows update? Here's a simple, step-by-step guide to fixing the problem and getting your computer back on track - without the stress.
Kalyan Bhattacharjee
Apr 29, 20253 min read
How Antivirus Software Works: Detection, Scanning, and Protection
Ever wondered how antivirus software keeps your computer safe? This beginner-friendly guide explains how antivirus detects, blocks, and removes threats in real-time.
Kalyan Bhattacharjee
Apr 28, 20254 min read
Fast Charging Technology: Benefits, Risks, and Battery Insights
Fast charging is a lifesaver when you’re low on time, but what does it mean for your battery’s health? Find out how fast charging works, its effects on your device, and simple ways to keep your battery strong.
Kalyan Bhattacharjee
Apr 27, 20254 min read
Solar Batteries Explained: How They Work & Why They Matter
Solar batteries store the extra energy your panels produce, letting you use solar power even after the sun goes down. Here’s how they work and why they’re a game-changer.
Kalyan Bhattacharjee
Apr 27, 20253 min read
Solid-State Batteries in Depth: Technology, Benefits, & Challenges
Solid-state batteries are transforming the energy game with safer, longer-lasting power solutions. Learn how they work and why they’re poised to replace lithium-ion technology.
Kalyan Bhattacharjee
Apr 27, 20253 min read
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