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Clear app cache on Android
Clear an app's cache on Android to fix crashes and free up space. Step-by-step instructions for Samsung, Google Pixel, Xiaomi and other phones.
1 min read
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Simple answers to everyday tech problems
Clear, step-by-step fixes for iPhone, Apple, Android and the apps you use every day. Find the setting, understand what it does, and get back to what you were doing.
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iPhone
Check iPhone battery health
Find your iPhone's Maximum Capacity in Settings, understand what the percentage tells you, and learn when a battery replacement is actually worth it.
2 min read
Start with the symptom
What is going wrong?
Most people arrive with a symptom rather than a setting name. Pick the one that matches.
Battery draining fastFind what is using the power and which settings actually help.Wi-Fi or Bluetooth droppingWork through connection problems in the order that fixes them fastest.Storage is fullSee what is really taking up space and free it without losing photos.An app keeps crashingNarrow it down to the app, the account or the operating system.A setting has movedLocate features that were relocated in a recent iOS or Android update.The phone will not turn onRule out the simple causes before assuming hardware failure.
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Check if a phone is stolen
Learn how to check if a phone is stolen before you buy it. Run a free IMEI check, spot Activation Lock and unpaid balances, and avoid used phone scams.
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Use your phone in Mexico
How to use your phone in Mexico without a surprise bill. See what Verizon, AT&T and T-Mobile include, when to buy a pass or eSIM, and settings to check first.
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Is an iPhone battery replacement worth it?
Is it worth replacing your iPhone battery? See 2026 Apple prices by model, when AppleCare+ makes it free, and when a new phone is the better choice.
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iPhone liquid detected
iPhone liquid detected alert even when it is dry? Learn why it happens, how long to wait, when Emergency Override is safe and 7 fixes to charge again.
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Show me the fixiPhone
Is my iPhone refurbished?
How to tell if an iPhone is refurbished, new or repaired: read the model number letter, check parts history, battery cycles and warranty in a few minutes.
6 min read
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Is my phone unlocked?
How do I know if my phone is unlocked? Check in Settings on iPhone, Samsung or Pixel, test a SIM or eSIM, and see the 2026 Verizon, AT&T and T-Mobile rules.
7 min read
Get the answerBrowse
Guides by category
Every guide belongs to one category, so you can work through a device or a topic in order.
iPhone
Settings, features and fixes for iPhone, from battery and storage to Face ID and iOS updates.
37 guidesApple
Apple ID, iCloud, Mac, iPad, Apple Watch and the services that tie them together.
37 guidesAndroid
Android settings, Google account issues and device-specific fixes explained step by step.
29 guidesApps
Fixes and walkthroughs for the apps people use every day: messaging, streaming, storage and more.
41 guidesHow-To
Straightforward walkthroughs for the things people actually need to do on their phones.
132 guidesTroubleshooting
Something is broken. Work through the likely causes in order, starting with the quickest fix.
10 guidesGuides
Longer explainers for settings and features worth understanding properly, not just toggling.
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