Distinct consumer questions
Phone and tablet troubleshooting
Browse phones & tablets by the symptom the customer actually sees. Each record has its own observation, isolation test, correction, verification and stop condition; manufacturer names are not swapped into generic copy.
Browse by platform
2,130 complete records in this directoryAirDrop cannot find the other device
Turn on Wi-Fi and Bluetooth on both Apple devices, move them nearby, set the receiver to Contacts Only or Everyone for 10 Minutes, and restart both devices. Personal Hotspot can interfere with the local discovery path.
Open record Android · AppsAn Android app keeps crashing or will not open
Force stop the app, restart the device, update the app and Android, then clear the app cache. Clear storage or uninstall only with credentials and synced data available because either can remove local app state.
Open record iPhone · AppsAn iPhone app keeps closing, freezing or will not open
Close and reopen the app, restart iPhone, update the app and iOS, then delete and redownload the app last. Deletion can remove data stored only inside that app.
Open record Android · defaultsAndroid default-app routing behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates Android default-app routing through system default versus in-app browser and domain-specific verified links.
Open record Android · defaultsAndroid default-app routing is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates Android default-app routing through system default versus in-app browser and domain-specific verified links.
Open record Android · defaultsAndroid default-app routing is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates Android default-app routing through system default versus in-app browser and domain-specific verified links.
Open record Android · defaultsAndroid default-app routing keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates Android default-app routing through system default versus in-app browser and domain-specific verified links.
Open record Android · defaultsAndroid default-app routing stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates Android default-app routing through system default versus in-app browser and domain-specific verified links.
Open record Android · defaultsAndroid default-app routing works only on one app, network, account or location
When a phone or tablet function changes with the app, network, account or location, that context is the first repair boundary. This record isolates Android default-app routing through system default versus in-app browser and domain-specific verified links.
Open record Android · Wi-FiAndroid is connected to Wi-Fi but has no internet
Compare Wi-Fi with mobile data, test another device on the same network, restart the phone and router, then forget and reconnect to the network. Reset Wi-Fi, mobile and Bluetooth settings only after noting that it removes saved connections.
Open record Android · keyboardAndroid keyboard disappeared or will not open
If no keyboard appears in any app, the input method may be disabled, crashed or not selected. If one app is affected, treat it as that app’s layout problem.
Open record Android · hotspotAndroid mobile hotspot behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates Android mobile hotspot through carrier/tethering plan versus cellular data, VPN, band and client compatibility.
Open record Android · hotspotAndroid mobile hotspot is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates Android mobile hotspot through carrier/tethering plan versus cellular data, VPN, band and client compatibility.
Open record Android · hotspotAndroid mobile hotspot is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates Android mobile hotspot through carrier/tethering plan versus cellular data, VPN, band and client compatibility.
Open record Android · hotspotAndroid mobile hotspot keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates Android mobile hotspot through carrier/tethering plan versus cellular data, VPN, band and client compatibility.
Open record Android · hotspotAndroid mobile hotspot stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates Android mobile hotspot through carrier/tethering plan versus cellular data, VPN, band and client compatibility.
Open record Android · hotspotAndroid mobile hotspot works only on one app, network, account or location
When a phone or tablet function changes with the app, network, account or location, that context is the first repair boundary. This record isolates Android mobile hotspot through carrier/tethering plan versus cellular data, VPN, band and client compatibility.
Open record Android · notificationsAndroid notification channels behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates Android notification channels through app-wide permission versus one disabled channel, Focus and battery restriction.
Open record Android · notificationsAndroid notification channels is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates Android notification channels through app-wide permission versus one disabled channel, Focus and battery restriction.
Open record Android · notificationsAndroid notification channels is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates Android notification channels through app-wide permission versus one disabled channel, Focus and battery restriction.
Open record Android · notificationsAndroid notification channels keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates Android notification channels through app-wide permission versus one disabled channel, Focus and battery restriction.
Open record Android · notificationsAndroid notification channels stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates Android notification channels through app-wide permission versus one disabled channel, Focus and battery restriction.
Open record Android · notificationsAndroid notification channels works only on one app, network, account or location
When a phone or tablet function changes with the app, network, account or location, that context is the first repair boundary. This record isolates Android notification channels through app-wide permission versus one disabled channel, Focus and battery restriction.
Open record Android · notificationsAndroid notifications arrive late or only after unlocking
Delayed alerts usually come from per-app notification settings, battery optimization, restricted background data, Focus/Do Not Disturb or a vendor sleep list.
Open record Android · incoming callsAndroid phone rings but the incoming-call screen does not appear
A missing call screen can result from Phone app notifications, display-over-app permission, default-phone selection or a stuck call app—not the cellular connection itself.
Open record Android · storageAndroid storage is full even with few photos
Hidden storage is often app caches/downloads, offline media, messaging attachments, trash or system update files. Use the storage breakdown before deleting app data.
Open record Android · USBAndroid USB file transfer behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates Android USB file transfer through charge-only cable versus port, host driver, USB preference and security prompt.
Open record Android · USBAndroid USB file transfer is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates Android USB file transfer through charge-only cable versus port, host driver, USB preference and security prompt.
Open record Android · USBAndroid USB file transfer is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates Android USB file transfer through charge-only cable versus port, host driver, USB preference and security prompt.
Open record Android · USBAndroid USB file transfer keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates Android USB file transfer through charge-only cable versus port, host driver, USB preference and security prompt.
Open record Android · USBAndroid USB file transfer stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates Android USB file transfer through charge-only cable versus port, host driver, USB preference and security prompt.
Open record Android · USBAndroid USB file transfer works only on one app, network, account or location
When a phone or tablet function changes with the app, network, account or location, that context is the first repair boundary. This record isolates Android USB file transfer through charge-only cable versus port, host driver, USB preference and security prompt.
Open record Android · BluetoothAndroid will not pair with a Bluetooth device
Turn Bluetooth off and on, restart both devices, make the accessory discoverable and keep it nearby, then forget and re-pair it. Check whether the accessory is still connected to a different phone before resetting network settings.
Open record iPad · Apple PencilApple Pencil charging behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates Apple Pencil charging through Pencil generation and iPad compatibility versus tip, case, adapter and battery.
Open record iPad · Apple PencilApple Pencil charging is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates Apple Pencil charging through Pencil generation and iPad compatibility versus tip, case, adapter and battery.
Open record iPad · Apple PencilApple Pencil charging is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates Apple Pencil charging through Pencil generation and iPad compatibility versus tip, case, adapter and battery.
Open record iPad · Apple PencilApple Pencil charging keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates Apple Pencil charging through Pencil generation and iPad compatibility versus tip, case, adapter and battery.
Open record iPad · Apple PencilApple Pencil charging stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates Apple Pencil charging through Pencil generation and iPad compatibility versus tip, case, adapter and battery.
Open record iPad · Apple PencilApple Pencil charging works only on one app, network, account or location
When a phone or tablet function changes with the app, network, account or location, that context is the first repair boundary. This record isolates Apple Pencil charging through Pencil generation and iPad compatibility versus tip, case, adapter and battery.
Open record iPad · Apple PencilApple Pencil connects but will not write
A connected Pencil that will not draw can have a loose/worn tip, unsupported app state, low charge or model incompatibility. Test in Apple Notes before changing an art app.
Open record iPhone · CarPlayCarPlay will not connect to iPhone
Confirm the vehicle and country support CarPlay, unlock iPhone, test the correct USB port and cable or enable Wi-Fi/Bluetooth for wireless CarPlay, then restart the phone and car. Forget the car and set it up again only after those checks.
Open record iPhone · Personal HotspotDevices connect to iPhone hotspot but have no internet
A hotspot can broadcast Wi-Fi even when the iPhone has no usable cellular data, the plan blocks tethering or VPN/network settings interfere.
Open record Samsung Galaxy · biometricsGalaxy fingerprint sensor behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates Galaxy fingerprint sensor through finger condition and protector versus enrollment, display setting and sensor hardware.
Open record Samsung Galaxy · biometricsGalaxy fingerprint sensor is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates Galaxy fingerprint sensor through finger condition and protector versus enrollment, display setting and sensor hardware.
Open record Samsung Galaxy · biometricsGalaxy fingerprint sensor is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates Galaxy fingerprint sensor through finger condition and protector versus enrollment, display setting and sensor hardware.
Open record Samsung Galaxy · biometricsGalaxy fingerprint sensor keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates Galaxy fingerprint sensor through finger condition and protector versus enrollment, display setting and sensor hardware.
Open record Samsung Galaxy · biometricsGalaxy fingerprint sensor stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates Galaxy fingerprint sensor through finger condition and protector versus enrollment, display setting and sensor hardware.
Open record Samsung Galaxy · biometricsGalaxy fingerprint sensor works only on one app, network, account or location
When a phone or tablet function changes with the app, network, account or location, that context is the first repair boundary. This record isolates Galaxy fingerprint sensor through finger condition and protector versus enrollment, display setting and sensor hardware.
Open record Samsung Galaxy · USB moistureGalaxy moisture warning will not clear
The moisture/debris warning blocks wired charging to protect the USB port. Drying naturally and testing another cable is safer than heat, compressed air or inserting objects.
Open record Samsung Galaxy · S PenGalaxy phone or tablet does not detect the S Pen
S Pen detection depends on model support, tip/proximity behavior, magnetic accessories and—on Bluetooth models—charge and pairing. Screen writing and remote actions are separate tests.
Open record Android · system servicesGoogle Play services behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates Google Play services through one app versus system service update, account, storage and device certification.
Open record Android · system servicesGoogle Play services is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates Google Play services through one app versus system service update, account, storage and device certification.
Open record Android · system servicesGoogle Play services is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates Google Play services through one app versus system service update, account, storage and device certification.
Open record Android · system servicesGoogle Play services keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates Google Play services through one app versus system service update, account, storage and device certification.
Open record Android · system servicesGoogle Play services stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates Google Play services through one app versus system service update, account, storage and device certification.
Open record Android · system servicesGoogle Play services works only on one app, network, account or location
When a phone or tablet function changes with the app, network, account or location, that context is the first repair boundary. This record isolates Google Play services through one app versus system service update, account, storage and device certification.
Open record iPhone · MessagesiMessage activation behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates iMessage activation through carrier SMS and date/time versus Apple Account, network and activation state.
Open record iPhone · MessagesiMessage activation is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates iMessage activation through carrier SMS and date/time versus Apple Account, network and activation state.
Open record iPhone · MessagesiMessage activation is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates iMessage activation through carrier SMS and date/time versus Apple Account, network and activation state.
Open record iPhone · MessagesiMessage activation keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates iMessage activation through carrier SMS and date/time versus Apple Account, network and activation state.
Open recordStructured depth, not empty permutations
Every published record carries a direct answer, scope, ordered fixes, risk notes and sources.
Device and manufacturer hubs share a consistent record system, but each answer carries the relevant controls, fault boundaries, consequences and official support entry point for that platform.
See the publication gate