Diagnose Any
iPhone Problem
Battery, performance, and iOS — real diagnostics, straight answers, no guesswork.
Free iPhone Diagnostic Tools
Instant, interactive calculators and checkers — no signup, just plug in your numbers.
What iPhone Problem Are You Experiencing?
Choose your symptom to find practical troubleshooting steps, likely causes, and safe fixes.
More iPhone Fixes
Step-by-step guides for iOS 27, battery, charging, signal and account problems.
- SOS or No Service
- iPhone 18 Pro Max SOS on AT&T
- Invalid SIM or No SIM
- iPhone Unavailable or Locked Out
- Apple ID Sign-In Keeps Popping Up
- RCS Messages Not Delivered
- iPhone Storage Full
- AirPods Won’t Connect
- Bluetooth Not Working
- CarPlay Not Working
- Wi-Fi Keeps Disconnecting
- Face ID Not Working
- iPhone Won’t Turn On
- iMessage Waiting for Activation
Latest Articles
iMessage Waiting for Activation? How Long It Takes and How to Fix It
Seeing iMessage waiting for activation on your iPhone? It means your iPhone is still trying to register your phone number with Apple, which uses a hidden text message through your carrier. Usually it finishes on its own. If it doesn’t, the cause is almost always the network, the date and time, your SIM or eSIM,…
iPhone Won’t Turn On? How to Fix a Black Screen, Dead Battery or Frozen iPhone
iPhone won’t turn on? Don’t panic. Most of the time it isn’t dead. The battery is fully drained, the software has frozen with a black screen, or iPhone is stuck during startup. Apple’s fix is the same short list every time: force restart, charge it for an hour, then use recovery mode. Here’s each step…
Face ID Not Working on iPhone? Apple’s Fixes and iPhone 18 Pro Tips
Face ID not working on your iPhone? Most of the time it’s something simple: a smudge or screen protector over the TrueDepth camera, a mask or sunglasses, the angle you’re holding the phone, or a Face ID setting that’s turned off. Sometimes iPhone just needs your passcode, which is normal. Here are Apple’s fixes in…
iPhone Overheating? Why It Gets Hot and How to Cool It Down
iPhone overheating? A warm iPhone is usually normal: Apple says iPhones get warm during setup, big updates, wireless charging, gaming and video streaming. It becomes a problem when your iPhone gets hot while idle, keeps dimming the screen, stops charging or shows a temperature warning. This guide covers what’s normal, the 7 most common causes…
iPhone Wi-Fi Keeps Disconnecting After iOS 27? How to Fix It
iPhone Wi-Fi keeps disconnecting, especially since the iOS 27 update? Some users report random drops, slow speeds or networks that won’t reconnect after a major update. Apple hasn’t confirmed a Wi-Fi bug in iOS 27, and most drops come from a stale network setting, the router, or an iPhone feature like Private Wi-Fi Address or…
iPhone Stuck on the Apple Logo After an iOS 27 Update? Fix It Without Losing Data
iPhone stuck on the Apple logo after an iOS 27 update, or restarting over and over? Don’t erase it yet. An update can sit on the Apple logo for a long time while it finishes, and if it really is stuck, Apple’s own fix reinstalls iOS without deleting your data. Here’s how to tell whether…