Mobile
Android and iPhone connectivity, apps and device behavior, with steps specific to each problem.
Android won't connect to Wi-Fi
Distinguish a Wi-Fi connection that never completes from a connected network without internet, then check the scope.
View solutionAndroid won't connect to a Bluetooth device
Check accessory discovery and pairing in Android settings before troubleshooting apps or audio.
View solutioniPhone won't connect to Wi-Fi
Check the selected network in Settings and distinguish a rejected connection from Wi-Fi connected without internet.
View solutioniPhone won't connect to a Bluetooth device
Check discovery mode, the accessory’s existing connections and its app permission where applicable.
View solutioniPhone shows a liquid-detection alert
Disconnect the cable and let the connector dry without heat, rice or inserted objects before trying to charge again.
View solutioniPhone shows Invalid SIM or No SIM
Check the plan, carrier lock and settings before handling a physical SIM or deleting an eSIM.
View solutioniPhone shows Storage Almost Full
Identify local storage use and distinguish offloading an app while retaining data from deleting it with its data.
View solutioniPhone shows SOS, No Service or Searching
iPhone is not connecting to the cellular network. Check reconnection, coverage and line status separately from Wi-Fi.
View solutionGoogle Play won't download or install apps
The app has not finished downloading or installing. Check connection and space before troubleshooting an app that is not yet available.
View solutionMobile data not working on Android
Separate mobile data from Wi-Fi and check for a cellular connection indicator before changing network settings.
View solutionAndroid keeps restarting or shutting down
Distinguish a completed restart, a full shutdown and a boot loop. On a stable phone, storage and safe mode help choose what to investigate; abnormal physical signs mean testing should stop.
View solutionAndroid app won't open or keeps crashing
The app is installed but will not open, crashes or stops responding. Start with a restart and updates before removing its data.
View solutionAndroid phone freezes or won't respond
The phone is stuck or unresponsive. Regain control with the restart for that state, then investigate recurrence.
View solutioniPhone Personal Hotspot not working
iPhone is not sharing internet access with another device. Check cellular service, plan support and the connection type before resetting settings.
View solutionAndroid phone won't charge
The phone is not taking charge or showing a charging indication. Check the cable, adapter and connection before assuming battery failure.
View solutionAndroid touchscreen not responding
The screen shows an image but does not respond properly to touch. Check the surface, case and protector before changing apps or erasing data.
View solutioniPhone won't turn on or has a black screen
Distinguish no activity, sounds with a black screen, a repeating logo and low battery. Use your model’s restart procedure and the charging path that matches its result, without looping attempts.
View solutioniPhone app won't open or keeps crashing
One app fails to open or closes unexpectedly. Try reopening and updating before deleting an app that may hold local data.
View solutioniPhone microphone not working
Your voice is not recorded or sounds unclear. Test a recording and check whether one app is affected before assuming microphone failure.
View solutionNo sound or distorted speaker audio on iPhone
The speaker or receiver is silent or distorted. Check sound settings and obstructions before seeking repair.
View solutionHeadphones not working on iPhone
Connected headphones are not playing sound correctly. Check connection, volume and another pair before attributing it to iPhone.
View solutionAndroid screen is black or blank
No image appears on the screen. Check power and signs of operation before treating it as a touch-input failure.
View solutionFace ID not working on iPhone
Check that Face ID is enabled, nothing covers the TrueDepth camera and the iPhone can see your face. Leave reconfiguration until later.
View solutioniPhone won’t charge
Try a known working power source, firm connections and undamaged compatible accessories. If a temperature, liquid or accessory alert appears, follow that message.
View solutioniPhone shows “Charging On Hold”
Charging is paused because the iPhone is too hot or cold. Let it return to a normal temperature so charging can resume.
View solutionAirDrop not working on iPhone
Bring the devices close, turn on Wi-Fi and Bluetooth and check who can receive. Disconnect Personal Hotspot during the transfer.
View solutioniPhone shows “Accessory may not be supported”
Reconnect the accessory and check compatibility, cable and connector. Damage, debris or incompatibility can trigger the alert; it does not identify one cause.
View solutionBluetooth connected on Android but no music audio
If the accessory is already connected, check volume, audio destination and Media audio. You do not need to start by deleting the pairing.
View solutionBluetooth calls not working on Android
Check that the accessory supports calls and has Phone audio enabled. Playing music over Bluetooth does not guarantee calls will use that device.
View solutionGoogle Play payment declined or won’t process
Check the alert and pending payment-profile actions. Verify the payment method and billing address before retrying a purchase.
View solutioniPhone can’t send or receive messages
Identify whether iMessage or carrier messaging is failing. Check the appropriate connection and phone line before retrying a failed message.
View solutioniPhone messages appear green instead of blue
Green means the message used RCS or SMS/MMS instead of iMessage. If it is delivered, the color alone does not indicate a problem.
View solutioniPhone sends messages from email instead of phone number
Check which address starts your iMessage conversations. Choose your phone number and start a new conversation if the previous one began from email.
View solutioniPhone can’t check for or download an iOS update
Check the alert and the connection required by the update. Retry on the same network, then another trusted network before considering a computer update.
View solutionAndroid hotspot doesn’t appear or won’t connect
Check that the hotspot is on and use its current name and password. If it connects but has no internet, check the phone’s mobile data.
View solutionApp Store cannot download or update apps on iPhone
Use the visible message to distinguish a stalled download, an app restriction, and an account problem. Even a free app may require resolving billing.
View solutionAndroid storage full or insufficient storage
Identify what occupies storage before deleting anything. Distinguish cache, app data, and personal files, and verify backups before removing local copies.
View solutioniCloud Backup cannot complete on iPhone
Distinguish insufficient iCloud space, backup failure, a long upload, and a greyed-out option. The state determines whether to check capacity, connection, upload time, or restrictions.
View solutioniMessage stuck on Waiting for activation
Separate phone-number activation from messaging through email. Check SMS, your line, and Apple’s requirements without repeatedly toggling iMessage.
View solutionAndroid notifications missing or delayed
Distinguish missing, silent, delayed, and lock-screen-hidden notifications. Change one setting at a time based on the observed pattern.
View solutionAndroid charges over USB but cannot transfer files to Windows
Check USB mode and a known-good data cable. Cross-tests distinguish cable, PC port, and phone without installing unknown MTP driver packages.
View solutionGoogle Play purchase charged but content not received
Check the order and account before repeating a purchase. For completed orders, try supported restoration and preserve evidence for support.
View solutioniCloud Photos not syncing on iPhone
Read Photos status and distinguish upload, download, and capacity. Compare a photo across devices without deleting originals or resetting the library.
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