THE TROUBLESHOOTING LIBRARY

Guides for your apps, computer and phone.

Search for the symptom, application or message on your screen.

28 guides available

WhatsApp messages are not sending

Check whether WhatsApp shows a clock or one check mark, then separate a connection problem from a message waiting for delivery.

Android · iPhone4 min read

Gmail

Gmail is not syncing on Android

Compare the same Gmail account on the web and Android to tell a syncing problem apart from an email that never reached the account.

Android5 min read

Gmail

Gmail is not receiving emails

Search the whole Gmail account and check filters and storage before changing settings or deleting messages to recover missing emails.

Web · Android6 min read

Windows

Windows cannot hear your microphone

Use the Windows microphone input test to separate a device problem from app permissions or the wrong microphone selected in a call.

Windows 115 min read

Windows

One Windows app has no sound

Check the Windows volume mixer, the app volume and its output device when other apps play sound through the same speakers or headphones.

Windows 114 min read

Chrome

Chrome cannot access your microphone

Check Windows permission, the website permission and the selected input when your microphone works outside Chrome but not in a browser call.

Chrome · Windows 115 min read

Gmail

Gmail receives emails but does not notify you

If emails arrive in Gmail but Android shows no alert, check notification permission, account settings and labels without clearing app data.

Android4 min read

WhatsApp Web is stuck connecting

If WhatsApp Web will not connect or says your computer is offline, compare the browser and network before signing out of your session.

Web4 min read

WhatsApp only notifies you when opened

Separate silent alerts from delayed WhatsApp messages on Android. Check the network, background data and battery restrictions one change at a time.

Android3 min read

WhatsApp sends texts but not photos

Find whether a WhatsApp photo fails during selection, opening or upload on Android. Compare a new file, relevant permissions and another connection.

Android3 min read

WhatsApp will not record a voice message

Separate an empty recording from a voice message that will not send or play. Check access, audio input and storage without deleting chats.

Android3 min read

Gmail

Gmail email stays queued in the outbox

Find whether Gmail on Android has a pending send, an unfinished attachment upload or a recipient rejection. Protect drafts and avoid duplicate emails.

Android3 min read

Gmail

Gmail is not updating on iPhone

Compare Gmail web with the iPhone or iPad app, test manual refresh and background activity, and separate syncing from missing notifications.

iPhone · iPad3 min read

Gmail

A Gmail attachment will not finish uploading

Separate a stuck upload, a blocked file and a Drive link without access. Test Gmail web with a small file that contains no private information.

Web3 min read

Windows

Bluetooth headphones connect but stay silent

Check the selected Windows 11 output and compare apps before pairing Bluetooth headphones again when they already appear connected.

Windows 113 min read

Windows

Windows shows no camera picture

Compare the Camera app with your video call, check the shutter, connection and permissions, and record errors before changing drivers.

Windows 113 min read

Windows

The PC joins Wi-Fi but cannot browse

Compare the PC with another device on the same network to separate router trouble, unfinished network sign-in and a local Windows 11 issue.

Windows 113 min read

Chrome

Chrome cannot show your camera in a call

Check camera permission for the exact meeting website and the selected input when your camera already works in the Windows Camera app.

Windows 11 · Chrome3 min read

Chrome

Chrome will not finish a download

Read Chrome’s error before retrying. Separate connection failures, missing files, folder permissions and security blocks on Windows.

Windows 11 · Chrome3 min read

Chrome

Chrome shows unwanted website alerts

Identify which website sends Chrome alerts and revoke its permission without clicking ads or disabling every notification on the computer.

Windows 11 · Chrome3 min read

Switch phones

Move to Samsung using Smart Switch

Prepare your old Android, copy compatible data to a Galaxy with Smart Switch and check photos, contacts and app access before erasing the source.

Android · Samsung Galaxy3 min read

Switch phones

Move to Xiaomi using Mi Mover

Identify sender and receiver in Mi Mover, select compatible data and verify the copy when moving from an Android phone to Xiaomi.

Android · Xiaomi3 min read

Switch phones

Move to a new iPhone with Quick Start

Prepare both iPhones, choose direct transfer or a backup and verify photos, accounts and phone service before erasing the old device.

iPhone3 min read

Switch phones

Transfer Android data to an iPhone

Prepare Move to iOS, check the destination iPhone’s state and verify transferred data without erasing Android or assuming every app is copied completely.

Android · iPhone3 min read

Switch phones

Move from iPhone to Android

Choose a method supported by your new Android, check what it copies and verify photos, messages and accounts before retiring the iPhone.

iPhone · Android3 min read

Android

Your phone shows ads you did not open

Separate website notifications, in-app advertising and ads over other screens. Identify the source before installing another cleaner.

Android3 min read

Android

An app changed your Android home screen

Check the default Home app when a cleaner or viewer changes icons and navigation. Restore a known launcher before removing the unwanted app.

Android3 min read

Android

Uninstall an app that fills your phone with ads

Remove an unwanted downloaded app, check Play Protect and review account access and subscriptions while preserving important files.

Android3 min read

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