How to Fix Common Android Bugs and Glitches

Introduction

Knowing how to fix common Android bugs saves you time, money, and a lot of frustration. Apps that crash the moment you open them, a battery that drains by lunchtime, Wi-Fi that drops for no reason, a screen that freezes mid-scroll: almost every Android user runs into these problems sooner or later. The good news is that most of them have simple causes and simple fixes.

The bad news is that the internet is full of shortcuts that make things worse. “Booster” apps promise to speed up your phone and quietly harvest your data instead. Fake virus pop-ups push people into paying for junk software. Some repair shops have been caught going through customers’ photos. These aren’t rare edge cases. Regulators have fined companies millions of dollars over exactly these tricks.

This guide walks through Android troubleshooting in a practical order. You’ll start with quick fixes that solve most glitches in minutes, then move to specific problems like crashing apps, lag, overheating, and connection issues. After that come the bigger tools, such as safe mode and a factory reset, and when it actually makes sense to use them.

The last section covers the legal and ethical side of phone fixes, with real cases where fake cleaners, spyware sellers, and careless repair services got into serious trouble. By the end, you’ll know how to fix your phone and how to avoid the people who profit from a broken one.

Quick Fixes: How to Fix Common Android Bugs in 5 Minutes

Before you dig into a specific problem, run through these basics. They clear up a surprising share of Android glitches, and none of them put your data at risk. Menu names vary a little between Samsung, Google Pixel, Xiaomi, OnePlus, and other brands, but the options exist on nearly every phone.

1. Restart your phone

It sounds too simple, but a restart clears temporary memory, closes stuck background processes, and resets network connections. Many phones run for weeks without a reboot, and small memory leaks build up over time. Hold the power button (or power plus volume up on some Samsung and Pixel models) and tap Restart.

If the screen is frozen and won’t respond, force a restart by holding the power and volume down buttons together for 10 to 20 seconds until the phone vibrates or the logo appears.

2. Install system and app updates

A lot of bugs are known problems that the manufacturer has already patched. Go to Settings > System > Software update (on Samsung, Settings > Software update) and install anything waiting. Then open the Play Store, tap your profile picture, and choose Manage apps and device to update your apps.

Also check for Google Play system updates under Settings > Security and privacy > Updates. These deliver security fixes and component updates separately from the main Android version.

3. Free up storage

When storage gets close to full, Android slows down, apps crash, and updates fail to install. Aim to keep at least 10 to 15% of your storage free. Go to Settings > Storage to see what’s taking up space. The usual culprits are:

• Downloaded videos and old WhatsApp or Telegram media
• Duplicate photos that are already backed up to the cloud
• Apps you haven’t opened in months
• The Downloads folder, which collects old PDFs and installers

4. Check the date, time, and network

Wrong date or time settings can break app logins, Google account sync, and secure websites. Make sure Automatic date and time is turned on. If apps can’t connect, toggle Airplane mode on for 10 seconds and then off again to reset your connections.

5. Charge it and let it cool

A very low battery triggers power saving limits, and a hot phone throttles its own processor. If your phone feels sluggish or apps act strangely, plug it in, take it out of a thick case, and let it cool for a few minutes before you troubleshoot anything else.

If the problem survives all five steps, move on to the specific fixes below.

How to Fix Common Android Bugs, Problem by Problem

If the quick fixes didn’t help, match your symptom below. Each section explains the likely cause first, because knowing why something breaks makes the fix stick.

Apps keep crashing or won’t open

When Android apps keep crashing, the cause is usually corrupted cached data, a buggy app update, or a conflict with a system component. Work through these steps in order and test the app after each one:

1. Force stop the app. Go to Settings > Apps > [app name] > Force stop, then reopen it.
2. Clear app cache. In the same screen, tap Storage & cache > Clear cache. This removes temporary files without deleting your logins or data.
3. Clear storage. If the cache didn’t help, tap Clear storage. This resets the app like a fresh install, so you may need to log in again.
4. Uninstall updates or reinstall. For built-in apps, use the three-dot menu > Uninstall updates. For downloaded apps, uninstall and reinstall from the Play Store.

Sometimes the fault isn’t in the app at all. In March 2021, a bad update to Android System WebView, a component many apps use to display web content, caused Gmail and other apps to crash on phones worldwide. Google fixed it with updates to WebView and Chrome. If several apps crash at once, check for WebView and Chrome updates in the Play Store. Google’s own guide to fixing an installed Android app that isn’t working covers the same steps.

Android phone lagging or running slow

An Android phone lagging is usually short on storage or memory, running too many background apps, or working with a heavy launcher or widgets. Try this:

• Free up storage as described in the quick fixes
• Uninstall or disable apps you don’t use, especially manufacturer bloatware you’ll never open
• Remove live wallpapers and widgets that refresh constantly
• Turn on Developer options (tap Build number seven times in About phone) and set the animation scales to 0.5x for a snappier feel

Skip the “RAM booster” apps. Android already manages memory on its own, and killing apps forces them to reload from scratch, which uses more battery and makes the phone slower. Some of these apps have been far worse than useless, as the ethics section explains.

Battery draining fast

For a reliable battery drain fix, start by finding the cause. Go to Settings > Battery > Battery usage and look for an app using far more than it should.

• Restrict background use for apps that don’t need to run constantly
• Lower screen brightness or turn on adaptive brightness, since the display is usually the biggest drain
• Turn off location for apps that don’t need it, under Settings > Location > App location permissions
• Check signal strength. A phone searching for weak mobile signal burns battery fast

An older battery simply holds less charge. If your phone is more than two or three years old and drains quickly even when idle, a battery replacement from an authorized service center may be the real fix.

One warning: sudden, unexplained battery drain plus a hot phone and high data use can be a sign of stalkerware or malware. If an app you don’t recognize appears in your battery stats, take it seriously.

Phone overheating

Phones get warm during gaming, video recording, fast charging, and navigation. That’s normal. Phone overheating while idle or during light use is not.

• Remove the case while charging and avoid charging under a pillow or in direct sunlight
• Close games and camera apps when you’re done
• Use the original charger or a certified one, since cheap chargers can overheat both the phone and the cable
• Update your apps, because a buggy app stuck in a loop can heat the processor

If the phone gets hot enough to be uncomfortable to hold, or the battery looks swollen, stop using it and get it inspected. A swollen battery is a fire risk.

Wi-Fi, Bluetooth, or mobile data not working

When Wi-Fi is not working on Android, figure out whether the problem is the phone or the network. If other devices connect fine, the phone is the issue.

1. Forget the Wi-Fi network and reconnect with the password
2. Restart your router as well as your phone
3. Turn off Private DNS or VPN apps temporarily to rule them out
4. Use Reset Wi-Fi, mobile and Bluetooth (found under Settings > System > Reset options, or General management > Reset on Samsung)

The network reset clears saved Wi-Fi passwords and Bluetooth pairings, but leaves your apps and files alone.

Touchscreen not responding or ghost touches

An unresponsive screen or one that taps on its own often comes down to physical causes: a cracked or poorly fitted screen protector, moisture, grease, or a charger with electrical noise. Remove the protector, clean the screen, unplug the charger, and test again. If the problem only happens in one app, it’s a software bug. If it happens everywhere, including in safe mode, it’s likely hardware.

Delayed or missing notifications

Aggressive battery saving is the usual culprit, particularly on Samsung, Xiaomi, and OnePlus phones. Open the app’s settings, go to Battery, and set it to Unrestricted. Also check that notifications are allowed for that app and that Do Not Disturb isn’t on a schedule you forgot about.

Google Play Store errors

If downloads get stuck at “Pending” or you see error codes, clear the cache for both the Google Play Store and Google Play services in Settings > Apps. Make sure you have enough free storage and a stable connection. Removing and re-adding your Google account fixes stubborn sync problems, but write down your password first.

Random restarts or boot loops

A phone that restarts by itself may have a bad app, a failing battery, or a corrupted update. Start with safe mode, covered in the next section. If the phone keeps restarting on the logo screen, that’s a boot loop, and you’ll likely need the recovery menu or a factory reset.

Advanced Android Troubleshooting When Basic Fixes Fail

These tools are more powerful, and a couple of them can erase data. Use them in this order, and only move to the next one if the previous step didn’t work.

Use safe mode to find a problem app

Safe mode Android starts your phone with only the built-in apps running. If the bug disappears in safe mode, one of your downloaded apps is the cause.

1. Press and hold the power button until the power menu appears.
2. Touch and hold Power off (or Restart on some models) until the safe mode prompt appears, then tap OK.
3. Use the phone normally for a while. “Safe mode” appears at the bottom of the screen.
4. If the problem is gone, restart to exit safe mode, then uninstall recently added apps one at a time until the bug stops.

If the problem continues even in safe mode, it’s more likely a system bug or a hardware fault.

Wipe the cache partition (on phones that still have it)

On many Samsung and some other Android phones, the recovery menu has a Wipe cache partition option. It clears temporary system files that can get corrupted after a major update, and it doesn’t delete your personal data. Newer Google Pixel phones and some other models have dropped this option, so don’t worry if you can’t find it.

To reach recovery, you usually turn the phone off, then hold a button combination such as power and volume up while it’s connected to a computer or charger. The exact keys vary by model, so check your manufacturer’s support site before trying.

Back up before anything drastic

Before a factory reset, make sure your data is safe:

• Turn on Google One backup or your phone maker’s backup service under Settings > Google > Backup
• Confirm your photos are fully synced to Google Photos or another cloud service
• Export chats from WhatsApp, Telegram, or Signal using each app’s own backup tool
• Write down your Google account email and password

That last point matters more than people realize. Android’s Factory Reset Protection asks for the Google account that was on the phone before the reset. It exists to make stolen phones useless to thieves, but it also locks out owners who forgot their password.

Factory reset as the last resort

A factory reset wipes everything and returns the phone to its original software. It fixes almost every software bug, because it removes whatever was causing it.

Go to Settings > System > Reset options > Erase all data (factory reset). On Samsung, it’s under General management > Reset > Factory data reset. After the reset, restore your apps slowly instead of all at once. If the bug comes back after you add a particular app, you’ve found your problem.

If the bug survives a factory reset, it’s almost certainly hardware. At that point, contact the manufacturer or an authorized service center rather than trying more software fixes.

What not to do

Some popular forum advice causes more problems than it solves:

• Don’t install modified system files or firmware from unknown websites. They can contain malware and may void your warranty.
• Don’t root your phone just to fix a bug. Rooting weakens built-in security, and some banking and payment apps stop working.
• Don’t sideload “fixer” APKs that promise to repair your system. Legitimate fixes come through system updates and the Play Store.

The Ethical and Legal Side of Fixing Android Phones

Most guides on how to fix common Android bugs skip this part, but it matters. A glitchy phone makes people anxious, and anxious people are easy targets. The cases below show how scammers, spyware sellers, and careless repair workers have exploited that, and what happened to them.

Fake “virus detected” warnings: the Restoro and Reimage case

You’ve probably seen a browser pop-up claiming your phone has several viruses and needs an urgent scan. Those warnings are almost always fake. Real Android security alerts come from Google Play Protect or your phone’s built-in security settings, never from a random web page.

The same trick has landed companies in legal trouble. In 2024, two Cyprus-based tech support firms, Restoro and Reimage, agreed to pay $26 million to settle US Federal Trade Commission charges. The FTC said they used fake Windows pop-ups to convince people, especially older adults, that their computers were infected. Their scans flagged serious problems regardless of the computer’s real condition, and telemarketers then pushed technician services costing hundreds of dollars more. The FTC’s announcement of the Restoro and Reimage settlement explains the scheme in detail.

That case involved PCs, but the playbook is the same on phones. If a pop-up tells you to install an app, call a number, or pay to fix your Android, close the tab and run a Play Protect scan from the Play Store instead.

Stalkerware disguised as monitoring apps: the SpyFone case

Sometimes the “bug” is deliberate. Stalkerware is software secretly installed on someone’s phone to track their location, messages, and photos. Symptoms can look like ordinary glitches: battery drain, overheating, high data use, and unfamiliar apps or device admin permissions.

In 2021, the FTC banned the Android app maker Support King, which sold SpyFone, and its CEO Scott Zuckerman from the surveillance business entirely. It was the first time the agency issued an outright ban against a stalkerware company. The FTC said the app let buyers secretly monitor photos, texts, browsing history, and GPS location, and that installing it required weakening the target phone’s built-in protections. The company’s poor security also left that harvested data exposed to hackers. Details are in the FTC’s SpyFone press release.

Two lessons follow. First, installing spying software on another adult’s phone without their consent is illegal in many countries, whatever the app’s marketing says. Second, if you suspect stalkerware on your own phone, think about your safety before removing it, because removal can alert the person who installed it. Domestic violence support services can help you plan.

Repair shops and your private data

When you hand over a phone for repair, you’re often handing over your photos, messages, and accounts too. In 2016, two technicians at a contractor repairing Apple phones in California uploaded a customer’s private photos to her Facebook account. The case led to a reported multimillion-dollar settlement in 2021. It involved an iPhone, but the risk applies to any phone.

To protect yourself before any repair:

• Back up and, if possible, wipe the phone before handing it over
• Use repair mode if your phone has one. Recent Samsung and Pixel phones offer a mode that hides your personal data from technicians
• Choose authorized service centers or well-reviewed shops that explain their privacy policy
• Never share your PIN unless it’s truly required, and change it afterward if you do

“Unlocking” tools and stolen phones

Forums and video tutorials often promote tools that bypass Factory Reset Protection or remove carrier locks. On your own phone, with proof of purchase, the right path is to recover your Google account or ask the manufacturer for help. Bypassing these locks on a phone you don’t own is how stolen phones get resold, and buying or handling stolen goods is a crime in most countries. If someone offers a cheap phone that’s “just locked,” walk away.

Quick ethics checklist for phone fixes

1. Only install apps from the Play Store or the phone maker’s own store.
2. Ignore pop-ups that claim your phone is infected.
3. Never install monitoring software on someone else’s phone without their clear consent.
4. Protect your data before handing your phone to anyone.
5. Don’t bypass locks on a phone you can’t prove you own.

Conclusion

Learning how to fix common Android bugs mostly comes down to working in the right order: restart the phone, install updates, free up storage, and check basic settings first, then target the specific problem, whether that’s crashing apps, lag, battery drain, overheating, or broken Wi-Fi, before moving on to safe mode, a cache wipe, and finally a factory reset once your data is backed up. If a bug survives a reset, it’s almost certainly hardware and belongs with an authorized service center. Just as important is knowing what to avoid, because fake virus pop-ups, stalkerware, careless repair shops, and lock-bypass tools have caused real harm, with the FTC alone securing a $26 million settlement from scareware sellers and banning a stalkerware maker from the industry, so stick to official updates, the Play Store, and trusted repair services, and your phone and your privacy will both stay in good shape.