aWhen I first updated my iPhone to iOS 18, I was so excited to try out the new features. But within hours, my battery dropped fast and some of my favorite apps would not open. I was not alone. After every big iOS update, people run into all kinds of problems.
Some see their phones overheat or restart for no reason. Others find that things like the flashlight or camera do not work. If you are facing any iOS 18 bugs after updating, this guide will help you fix them step by step.
There is no need to panic or spend hours searching for answers. You will find simple solutions for every common bug, plus ways to keep your iPhone or iPad running smoothly.
Let us dive in together and get your device working right again.
What Is an iOS 18 Bug and Why Does It Matter?
An iOS 18 bug is a glitch or error that happens after you install the update. These bugs can drain your battery, freeze your apps, or even stop calls. If you ignore them, you might lose data or have a phone that does not work when you need it most. Fixing bugs fast keeps your device safe and saves you from headaches later.
How to Troubleshoot and Fix iOS 18 Bugs
Performance-Related Bugs and Solutions
Battery Draining Fast
Many people notice their battery runs out much quicker after updating. This happens because new features or apps run in the background. To fix this, open Settings and tap Battery. Look for any apps using too much power. Turn off background app refresh for apps you do not need running. Tap Settings, then General, then Background App Refresh. Switch off the ones you want. Turn on Low Power Mode in Settings > Battery to save energy. Make sure all your apps are updated. You can check for app updates in the App Store. If your battery still drains fast, check your battery health in Settings > Battery > Battery Health & Charging. If the health is low, you might need a new battery. [Insert Infographic: Steps to Fix iOS 18 Battery Drain]
iPhone Overheating
Your phone may feel hot after the update due to heavy use or buggy apps. Close any apps you are not using. Lower your screen brightness in Settings > Display & Brightness. Do not use your phone under direct sunlight. Remove your case while charging, as it can trap heat. If your phone stays hot, restart it by holding the side button and sliding to power off.
Laggy Performance or Slow Response
Slowdowns usually mean your storage is near full. Start by removing unused apps or photos. Go to Settings > Safari, then tap Clear History and Website Data. This frees up space and can make your phone faster. If your phone still lags, restart it. Turn on Reduce Motion in Accessibility settings for smoother scrolling.
Phone Keeps Restarting
This issue happens because of bad apps or update conflicts. If your phone restarts a lot, remove any apps you just installed. Update all your apps. If nothing helps, reset your settings. Go to Settings > General > Reset > Reset All Settings. This does not erase your data, just your settings. Your phone should stop restarting.
System-Related iOS 18 Issues and Fixes
Update Not Showing or Stuck on Update
If your phone does not show the update or gets stuck, it is likely a problem with Wi-Fi or Apple servers. Connect to a strong Wi-Fi network. Restart your phone and try updating again. If you are stuck, plug your phone into a computer and open iTunes or Finder. From there, select your device and check for updates.
Stuck in Recovery Mode or Apple Logo
This happens if an update fails or the software crashes. Try a force restart. Quickly press and release Volume Up, then Volume Down, then hold the Side button until you see the Apple logo. If it does not work, use iTunes or Finder to restore your device. If you still cannot fix it, consider a repair tool (see below for details).
Screen Time or Notifications Not Working
Screen Time errors or missing notifications often come from settings being reset. Turn Screen Time off, then back on in Settings. Still having problems? Reset all settings. For notifications, check Settings > Notifications and make sure alerts are on for every app you use.
Missing Developer Mode
If you need developer mode and it is missing, check if you are signed in with your developer account. If not, log in or reinstall your developer profile. Sometimes a restart will bring back the option.
App-Related iOS 18 Problems
Flashlight Not Working
If your flashlight stops working, try restarting your phone. If it is still broken, reset all settings in Settings > General > Reset. Make sure there is no damage to your camera or light.
Shortcuts and Automation Issues
These bugs can break your routines. Update the Shortcuts app first. Check permissions for each shortcut in the app’s settings. Sometimes you may need to delete and re-create the shortcut for it to work again.
Music Haptics Not Working
To bring back music haptics, make sure they are on in Settings > Sounds & Haptics. Close and reopen the Music app if needed. Restart your iPhone to refresh the system.
Mail, Call, and Photos App Glitches
If these core apps are glitchy, try deleting and reinstalling the app if possible. Free up device space and restart the app. For Mail issues, try removing and re-adding your email account. [Insert Screenshot: How to Reset iOS App Permissions]
Fix All iOS 18 Bugs with a One-Stop Tool
Sometimes, none of the standard fixes work. Or you just want a fast solution without losing your data. In these cases, a system repair tool like MagFone, ReiBoot, or Fixppo is your best bet. Here is how you use one:
- Download the tool on your computer.
- Connect your iPhone or iPad with a cable.
- Open the repair tool and select Standard Repair.
- Follow the prompts to fix your device.
- Let the tool finish its work. Your device will restart, bug-free.
Tips and Reminders for Troubleshooting iOS 18
- Always back up your data before you try deep fixes or use a repair tool.
- Update all your apps to avoid more bugs after an iOS update.
- Start with simple steps first: restart, update, and reset.
- If your bug is not listed here, check Apple support forums or talk to an expert.
FAQs about iOS 18 Bugs & Fixes
Why do updates cause bugs?
Updates add new features, but these can sometimes clash with old settings or apps. That can create bugs until everything is updated and in sync.
Should I downgrade iOS?
Only downgrade if nothing else fixes your problem and Apple still lets you install an older version. Usually, it is better to wait for a new fix or update.
Will I lose data when fixing bugs?
Most standard fixes keep your data safe. Still, you should back up your device before you try anything big or use a repair tool.
What if my favorite app does not work after the update?
Try updating the app. If that does not help, reinstall it or reach out to the app developer for support.
Can I fix iOS 18 bugs by myself, or do I need help?
You can fix most bugs with simple steps. If your phone is still not right, a repair tool or professional help will get you back on track.
Conclusion
Most iOS 18 bugs have simple fixes when you know what to do. Follow the steps in this guide to keep your device running smooth. If you get stuck, try a repair tool or ask Apple support for help. Keep your apps and system updated, and check back here as new fixes come out.
What to Do Next?
If your iPhone or iPad still does not work right, consider using a trusted system repair tool or book a session with Apple support. For more tips, check out our related guide on keeping your device bug-free. And always remember to back up your data before you try any fix!
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